WO2003074745A1

WO2003074745A1 - Hard metal alloy member and method for manufacture thereof

Info

Publication number: WO2003074745A1
Application number: PCT/JP2003/001993
Authority: WO
Inventors: Kazuo Ogasa
Original assignee: Kazuo Ogasa
Priority date: 2002-03-01
Filing date: 2003-02-25
Publication date: 2003-09-12
Also published as: JP4417115B2; AU2003211455A1; JPWO2003074745A1

Abstract

A hard metal alloy member which comprises a copper alloy comprising copper (Cu) in an amount of 40.00 to 99.45 wt % and, gadolinium (Gd) and at least one element selected from the group consisting of a rare earth element except Gd , an alkaline earth element, zirconium (Zr), tin (Sn), lead (Zn), indium (In), manganese (Mn), beryllium (Be) and cobalt (Co) in an amount of not less than 50 ppm and less than 15000 ppm.

Description

Description Hard metal alloy members and manufacturing method

The present invention relates to a metal alloy member suitable for electronic members, automotive / aviation members, physicochemical members, medical members, jewelry members, musical instrument members, tableware members, structural members, and the like, and a manufacturing method. Background art

Conventionally, iron (Fe), copper (Cu), aluminum (A1), magnesium (Mg), titanium (Ti), zinc (Zn), bell (Sn), beryllium (B e), zirconium (Zr), gold (Au), platinum (Pt), silver (Ag), palladium (Pd) and the like are known and used in various fields.

(Applications for precious metal materials such as gold, platinum, silver, and palladium have already been filed in PCT / JP / 0214, and in this application, this is an application to expand to metal materials. In order to make the best use of the properties, it improves and improves the hardness, tensile strength, elongation, Young's modulus, corrosion resistance, discoloration, temperature characteristics, workability, paneling, etc. Advantages of making use of the characteristics of each material To improve the shortcomings and improve the shortcomings.

The above-mentioned metallic materials are not necessarily sufficient in mechanical properties such as hardness and Young's modulus, physical properties, chemical properties, corrosion resistance, discoloration, etc. when used in applications in various fields. There is also the problem of poor workability. An object of the present invention is to obtain the required new member by improving, improving, and improving the characteristics of these defects while maintaining the characteristics of the metal material.

The metal alloy member of the present invention is characterized in that hardness, tensile strength, Young's modulus, heat resistance are improved, it has panel properties, it is easy to process, and the workability is good. Since it is easy to process, more than 90% can be processed without annealing. It shows features such as no cracking even if the rolling direction is changed. There is also growth. The gold Au alloy of the present invention has high hardness, Young's modulus, tensile strength, elongation, and spring properties. Processing Easy and good workability. Because of the high purity and small volume occupancy of the added elements, electronic materials with high electrical and thermal conductivity can be obtained. Since the Young's modulus is high, a member with good sound can be obtained. Because of the spring property, flexible and stiff wire and plate can be obtained. Because of its heat resistance, a material with high mechanical strength and high physical and electrical properties can be obtained. An ultra-high performance member of a gold alloy can be obtained.

Platinum Pt alloy has improved hardness, tensile strength, Young's modulus, and heat resistance, has panel properties, is easy to add, and has good workability. Furthermore, a reinforced member and a heat-resistant member having high properties with elongation and creep strength can be obtained. Widely used for rutupo, plug, dental material, physicochemical equipment, jewelry, etc.

Silver Ag alloys are attracting attention for electronic components, tableware components, and decorative components. However, when the strength is increased, the corrosion resistance (oxidation / sulfide resistance) is insufficient, and discoloration occurs. In order to maintain aesthetic value, it is currently commercialized using rhodium rheology. However, still, oxidation and sulfidation occur and discoloration occurs. ing. Furthermore, workability is poor.

The silver Ag alloy of the present invention has hardness, tensile strength, Young's modulus, heat resistance, panel properties, easy processing, and good workability. In particular, high-purity alloys have low electrical resistance and can provide electronic materials with good high-temperature characteristics. The silver Ag alloy of the present invention has a wide range of uses such as tableware, liquid crystal reflective films, optical disk reflective films, reflective LCD electrodes, semiconductor electrodes, dental materials, and jewelry.

The copper Cu alloy of the present invention has hardness, tensile strength, Young's modulus, heat resistance, is easy to process, and has good workability. High-purity products have good electric conductivity and are suitable as electronic materials. Even when the plate thickness is 0.2 mm or less, paneling is exhibited. Meets the latest specifications for lead frames, connectors, relays, switches, and other components.

The Fe Fe alloy of the present invention has high purity, high hardness, tensile strength, Young's modulus and heat resistance, is easy to process, has good work life, and has good paneling properties.高 It is possible to make use of high-purity iron Fe that is difficult to oxidize due to its purity. Iron alloys are expected to be a future vision if ultra-strong, super-heat-resistant, super-corrosion-resistant, ultra-low-temperature, and super-wear-resistant materials can be obtained. This shows that the iron Fe alloy composition and manufacturing method of the present invention may be useful. '

High-purity iron, which is a material with corrosion resistance, has high purity, hardness and tensile strength, high Young's modulus, negligible properties, and elongation properties, so high expectations for future parts are obtained. .

Lightweight aluminum A1 alloy is required to be a member with excellent mechanical and electrical properties. The aluminum A1 alloy of the present invention has high purity, hardness, tensile strength, Young's modulus and heat resistance, is easy to process, has good workability, and has good paneling and electrical conductivity. The use of the alloy A1 of the present invention is very numerous in automobiles, aircraft, ships, agricultural equipment, refrigerators, washing machines, contact bonding wires and the like. Lightweight magnesium Mg alloys are required to have excellent mechanical properties such as hardness, tensile strength, Young's modulus and elongation. The Mg alloy of the present invention has a wide range of uses, from small parts such as wheels, seat frames, basson bodies, mobile phones and video camera housings to large parts for helicopters.

Alloys such as gold Au, platinum Pt, silver Ag, copper Cu, anoremium A1, and magnesium Mg have high hardness, heat resistance at high temperatures, high tensile strength, and good mechanical properties. However, they are required as industrial materials and jewelry materials. For gold Au, silver Ag, copper Cu, aluminum A1, etc., high purity materials with low electric resistance and high mechanical strength are required as electronic members.

There is a need for a corrosion-resistant material having acid resistance and sulfidation resistance even in a thin film. Silver tableware and jewelry also require materials that are hardly oxidized / oxidized. The applications are endless. Disclosure of the invention

The present invention has arisen from the above-mentioned market demands, and its object is to provide a high-performance hard metal alloy member having excellent mechanical / physical / chemical properties, easy to process, and good workability, and the like. It is to provide a manufacturing method.

Furthermore, a high-performance hard metal alloy member excellent in corrosion resistance and discoloration, a method for producing the same, and the above-mentioned room temperature It is an object of the present invention to provide a hard metal alloy member having excellent mechanical properties and electrical properties at a high temperature as well as excellent properties at high temperatures, and a method for producing the same.

PCT / JP96 / 050510, PCT / JP97 / 02014 and PCT / JP00 / 04411 have been proposed to solve the disadvantages of precious metal alloys. The invention extends further. Newly developed metal alloy copper Cu, iron Fe, aluminum A1, magnesium Mg. We have found that these solutions for precious metal alloys can solve the disadvantages even with the above metal alloys. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 shows the composition of the present embodiment of the gold Au alloy, the platinum Pt alloy, the silver Ag alloy, and the copper Cu alloy of the present invention and the composition of the comparative example.

FIG. 2 shows the hardness, tensile strength, elongation, and softening properties of the high purity gold Au alloy of the noble metal alloy of the present invention.

FIG. 3 shows the hardness, tensile strength, elongation, and softening characteristics of the high-purity platinum Pt alloy of the noble metal alloy of the present invention.

FIG. 4 shows the hardness, tensile strength and softening characteristics of the high purity silver Ag alloy of the noble metal alloy of the present invention. FIG. 5 shows the hardness, tensile strength, and softening characteristics of the high purity copper Cu alloy of the metal alloy of the present invention. FIG. 6 shows the effect of improving the discoloration and corrosion resistance of the high-purity silver Ag alloy of the present invention.

FIG. 7 shows the composition of this embodiment of the iron Fe alloy, the aluminum A1 alloy, and the magnesium Mg alloy of the present invention, and the composition of a comparative example thereof.

Fig. 8 shows the hardness and tensile strength characteristics of the iron Fe alloy, aluminum A1 alloy, and magnesium Mg alloy of the present invention.

First embodiment according noble metal alloy of the present invention, Au content from 37.50 to 98.45 wt ^_0/0, a, alone gadolinium Gd or a gadolinium G,, di Koniumu Z r, tin S n, Indium In It is composed of a gold alloy containing a hardening additive composed of at least one element selected from the group consisting of In and In in a total range of 50 ppm or more and less than 15000 ppm.

Thus gold Au content from 37.50 to 98.45 wt ^_0/0, or a 98.45 weight ^_0/0 or more, an appropriate amount of a hardening additive comprising complexed with gadolinium Gd and other elements As a result, even a non-processed forged alloy exhibits a high hardness of 11 OHv or more and an unprecedentedly high Young's modulus of 6 000 kgf / mm ² . Gold alloys with high Young's modulus show 9000 kgf Zmm ² or more.

Gd is the most effective hardening element in consideration of the volume content, and shows a high heat resistance improving effect. Furthermore, they have found that particularly high Young's modulus and strong tensile strength can be secured. This As described above, because Gd has a large improvement in hardness, Young's modulus and tensile strength, the addition amount may be small, and an alloy member having good characteristics can be obtained without changing the characteristics of the base alloy. The target gold alloy is not particularly limited as long as it is an alloy having a gold grade of 9 K (carat) or more, and can be applied to ordinary gold alloys. Basically, it shows good corrosion resistance when it does not contain elements with poor corrosion resistance such as copper. A gold alloy containing an alloy element other than the noble metal may of course be used. The hardening additive is effective for any existing gold alloy.

Next, a method for manufacturing an alloy member having the above characteristics will be described.

First, in the case of a forged alloy, an alloy material having the above composition is forged, and the material is subjected to a solution treatment in which the material is heated to a predetermined temperature and then rapidly cooled, and then, if necessary, is subjected to an aging treatment at a predetermined temperature. Next, in the case of a processed alloy, an alloy material having the above composition is formed, the material is subjected to a solution treatment of heating to a predetermined temperature and then rapidly cooling, and the material is processed into a predetermined shape. Or, aging treatment is performed on the material later.

At this time, the gold material is manufactured, and the solution heat treatment temperature can be 500 ° C to 2700 ° C, and the aging temperature can be -100 ° C to 600 ° C.

According to the present invention, it is possible to obtain an alloy member having high hardness, high tensile strength and high Young's modulus irrespective of gold purity. Gold alloy of the conventional 24 K is the Young's modulus of about 4000 kgf / mm ^2, 18 K but was filed at about 5800 kgf mm ² at, in the present embodiment, 18 in the K alloy, Young's modulus 6000 kgf / mm ² or higher, and higher ones indicate 7000 kgf Zmm ² or higher. By optimizing the composition Contact Yopi conditions, the Young's modulus indicates a 9000 kgf / mm ² or more. The hardness of 18K (5/5) yellow is usually about 25 OHv at most, but the hardness of the 18K alloy of the present invention is 37 OHv or more.

For gold 11 purity 37.8 to 99.45 wt ^_0/0, not less than 99.45%, both, particularly preferred production conditions for obtaining high hardness,髙Young's modulus, strength tensile strength solution The processing temperature is 600-1000 ° C, and the aging temperature is 150-550 ° C.

In FIG. 1, the gold alloys of Example 1 and Example 2 were melted using 99.95% by weight of electrolytic gold. First, it was made into an 8 mm diameter wire with a sculpture machine, and then the sculpture material was subjected to a solution treatment under the conditions of 800 ° C for 1 hour, and was squeezed to a predetermined size with a groove roll and a die. The aging treatment was performed before or after processing at 250 ° C for 3 hours. Comparative Example 1 is gadolinium Gd, a single additive alloy, and Comparative Example 2 is high purity gold of 4N Au.

By performing the solution treatment and the aging treatment in this way, the hardening is remarkably hardened mainly by the action of Gd and the synergistic action with other additive elements. With appropriate selection of conditions and conditions, it is possible to set the value to 15 OHv or more, which is much larger than before. In the case of processed alloys, it is possible to obtain a value of 15 OHv or more at a processing rate of 50% or more, 18 OHv or more at a processing rate of 90% or more, and 20 OHv or more at a high processing rate. The processing rate at this time can be set to any value, but up to 99.0%, and even 99. A range of up to 6% is preferred.

The high-purity gold alloy of the present invention has a hardness of 170 HV or more, a heat resistance, and a tensile strength of 80 kgf / mm ² or more. Furthermore, the elongation was 4% or more, the Young's modulus was 8600 or more, and 9000 kgf Zmm ² or more. It was confirmed that the treatment of the present invention can improve hardness, tensile strength and Young's modulus while securing a predetermined elongation. It is easy to process and has good workability.

The alloy to be applied is not particularly limited, but as an additive alloy in which gadolinium Gd and an element other than Gd are added to the gold Au alloy at 50 to 15000 ppm, Au_Gd-Zr in Example 3 In Fig. 4, Au—Gd—Sn is exemplified, and Au—Gd—Sr, Au—Gd—Zn, Au_Gd—In, and Au—Gd—Sr—Zr However, the hardness, tensile strength, Young's modulus, and heat resistance were improved as in Examples 1 and 2. Easy to process and easy to work

Hard precious metal alloy member according to the second embodiment of the present invention is Burachuumu P t content 85.0 weight ^_0/0 above, gadolinium G d and zirconium Z r, tin Sn, the group consisting of indium I n It is composed of a platinum alloy containing at least 50 ppm and less than 15000 ppm in total of a hardening additive composed of at least one element selected from the group consisting of:

The noble metal alloy member made of the brassium alloy according to the embodiment is manufactured by adding an appropriate amount of gadolinium Gd and a hardening additive that is combined with another element, and performing the above-described processing, so that a processed alloy is not added. Showed an unprecedented high value of over 12 OHv. In the case of processing, a value of 150 HV or more can be obtained at a processing rate of about 50%, and a value of 200 Hv or more can be obtained at a processing rate of 90% or more.

Bratium alloys have the disadvantage of high Young's modulus but low hardness, and are difficult to apply to the intended use of the present invention, or can be applied by adding elements such as Cu. However, the hardness is not always sufficient, and problems such as corrosion resistance and color tone arise due to Cu and the like. On the other hand, according to the present invention, the hardness and the tensile strength can be reduced as described above. High Young's modulus of 8000 kgf / mm ² or more can be maintained. When adjusting the composition and manufacturing conditions, the Young's modulus 10,000 kg / mm ² or more while maintaining high hardness and strength tensile strength, further ^{15000 kgf / mm 2, 20000 kgf} / mm 2 or more can be a very high value It is.

Platinum Pt alloy has a solution treatment temperature of 600-2800. C, aging temperature can be 150-700 ° C. Particularly preferred conditions are a solution treatment temperature of 500 to 1600 ° C and an aging temperature of 150 to 600 ° C. The processing efficiency at the time of processing is arbitrary, but a preferable range is the same as that of the first embodiment.

In FIG. 3, a 2 Omm square alloy was prepared, subjected to a solution treatment at 1000 ° C. for 1 hour, and subjected to an aging treatment at 550 ° C. for 3 hours. It is possible to obtain more than 1 O OHv and 150Hv with a non-processed forged alloy. The processing rate is above 208Hv and above 25 OHv. Comparative Example 3 and As a comparative example 4, a Pt-Rh alloy was shown as a 4NPt base metal. Example 3 maintains 236Hv and Example 4 maintains 197Hv even at 800 ° C for 30 minutes. Even at 1400, it holds 117 Hv and 97 Hv. The tensile strength is 88.3 kgf Zmm ² and the elongation at break is large at 20%.

Example 3 and Example 4 have a hardness of 200 HV or more and a tensile strength of 85 kgf / mm ² or more. It is heat resistant, has a Young's modulus of 1700 kgf / mm ² or more, and has spring properties. Hardness, tensile strength, Young's modulus, and heat resistance improved, but it was confirmed. Easy to process and good workability.

The alloy to be applied is not particularly limited. However, in Example 3, Pt—Gd—Sr was used as an additive alloy in which gadolinium Gd and an element other than Gd were added to the platinum at 50 to 15000 ppm. — Zr, Pt—Gd—Zr in Example 4, Pt—Gd—Zirconium oxide, Pt—Gd_Rh, Pt—Gd—Zr, Pt—Gd—Sn , Pt-Gd-Zn and Pt-Gd-In alloys were tested and evaluated. As in Examples 1 and 2, the hardness, tensile strength, Young's modulus, and heat resistance were improved. did. It has panel properties, is easy to process, and has good workability.

Addition of the above elements to a Pt alloy composed of at least one element selected from the group consisting of palladium pt and palladium Pd, copper Cu, manganese Mn, tin Sn, and indium In The hardness and tensile strength were evaluated in the same manner as the above Pt-added alloy. Improved Young's modulus and heat resistance, and exhibited spring properties. Easy to process and good workability.

The hard noble metal alloy member according to the third embodiment of the present invention has a silver Ag content of 85.0% by weight or more and is selected from the group consisting of gadolinium Gd, zirconium Zr, tin Sn, and indium In. It is composed of a silver alloy containing at least 50 ppm and less than 15 000 ppm in total of a hardening additive composed of at least one element.

The solution treatment temperature of silver Ag alloy can be 450 ~ 2200 ° C, and the temperature of B-tempering can be 100 ~ 600 ° C. Particularly preferred conditions are a solution treatment temperature of 500 to 1550 ° C and an aging treatment temperature of 150 to 500 ° C. The processing efficiency at the time of processing is arbitrary, but the preferred range is the same as in the first embodiment.

In Examples 5, 6, and 7, gadolinium Gd and stotium Sr were added in appropriate amounts, and tin Sn, zirconium Zr, and indium In were added to each, and the above treatment was performed. Thus, the hardness HV shown in FIG. 3 was obtained. The hardness after plate processing at 250 ° C for 2 hours shows 169 Hv to 176 Hv. The hardness after treatment at 800 ° C for 30 minutes showed 115Hv ~ l24HV. The tensile strength was 52 k _§ // πιπι ² 〜60 kg / mm ² . The post-Yan rate was over 9000 kg / mm ² , an improvement of about 12%. Hardness, tensile strength, Young's modulus and heat resistance improved. It has panel properties, is easy to process, and has good workability.

The alloy to be applied is not particularly limited. However, in Example 5, Ag—Gd—Sr-Sn was used as an additive alloy in which gadolinium Gd and an element other than Gd were added at 50 to 15000 ppm to silver Ag. Example of Ag-Gd-Sr-Zr in Example 6, Example of Ag-Gd-Sr-In in Example 7 In addition, alloys of Ag—Gd—Zr, Ag—Gd—Sn, Ag—Gd—Zn, and Ag—Gd—In were evaluated as prototypes, but as in Examples 1 and 2. , Hardness, tensile strength, Young's modulus, heat resistance improved. It has spring properties, is easy to process, and has good workability.

Comparative Example 5 is a 4N silver Ag alloy, and Comparative Example 6 is a 92.5% Ag alloy.

It was found that the high-purity silver alloy of the present invention exhibited hardness and tensile strength equivalent to or higher than those of Ag 925 silver alloy, and also had heat resistance. The silver alloy of the present invention has a Young's modulus of 8500 kgf / mm ² or more, and the value can be adjusted.

FIG. 5 shows a continuous spray test of sodium chloride of the silver alloy of the present invention and a humidity of 90. /. These are the results of the spray test. It can be seen that there is no change in the appearance, and that discoloration and corrosion are less likely to occur. It has a remarkable effect. It was found that the sulfuration resistance was significantly improved by adding 0.1% by weight or more of palladium Pd. It was found that the effect of adding Pd was remarkable in the silver-Ag alloy of the present invention. Palladium was evaluated by adding PdO. 01%, 0.10%, 1.00%, and 10.00%.

The hard noble metal alloy member according to the fourth embodiment of the present invention is selected from a noble metal element group consisting of gold Au, silver Ag, bratium Pt, palladium Pd, rhodium Rh, ruthenium Ru, and osmium Os2. A precious metal alloy composed of at least one element, gadolinium Gd and a hardening additive composed of at least one element selected from the group consisting of zirconium Zr, tin Sn, and indium In in total It is included in the range of 50 ppm or more and less than 15000 ppm.

The hard noble metal alloy member according to the fifth embodiment of the present invention is selected from a noble metal element group consisting of gold Au, silver Ag, platinum Pt, palladium Pd, rhodium Rh, ruthenium Ru, and osmium Os1. Precious metal alloys composed of at least one element, gadolinium Gd, and a hardening additive composed of at least one element selected from the group consisting of zirconium Zr, tin Sn, and indium In At 50 ppm or more and less than 15000 ppm.

The hard noble metal alloy member according to the sixth embodiment of the present invention has a Au content of 99.45% by weight or more and is selected from the group consisting of gadolinium Gd, zirconium Zr, tin Sn, and indium In. It is composed of a gold alloy containing at least 50 ppm and less than 15,000 ppm in total of a hardening additive composed of at least one element.

The alloy applied to the embodiment is not particularly limited. The components other than the above-mentioned hardening additive may be any components used in ordinary noble metal alloys, and are not particularly limited. That is, the hardening additive is effective for any existing noble metal alloy. Manufacturing of the alloy member according to these embodiments is the same as in the first practical embodiment. In the case of fabrication, an alloy material having the above composition is fabricated, and the material is subjected to a solution treatment in which the material is heated to a predetermined temperature and then rapidly cooled. Thereafter, aging treatment is performed at a predetermined temperature as needed. In the case of a processed alloy, an alloy material having the above composition is manufactured, the material is subjected to a solution treatment in which the material is heated at a predetermined temperature and then rapidly cooled, and the material is processed into a predetermined shape. Later aging treatment for the first half material Is applied. In this case, the solution treatment temperature can be 600 to 2700 ° C, and the aging temperature can be 150 to 700 ° C. Particularly preferred conditions are a solution treatment temperature of 500 to 1,600 ° C and a temperature of 150 ° C to 600 ° C. The processing efficiency at the time of processing is arbitrary, but the preferred range is the same as in the first embodiment.

Hard precious metal alloy member according to the seventh embodiment of the present invention is platinum P t content 99.4 5 wt ^_0/0 above, gadolinium G d and zirconium Z r, tin S n, indium I n It is composed of a platinum alloy containing at least 50 ppm and less than 15000 ppm in total of a hardening additive composed of at least one element selected from the group consisting of:

The hard noble metal alloy member according to the seventh embodiment of the present invention has a silver Ag content of at least 99.45% by weight and is selected from the group consisting of gadolinium Gd, zirconium Zr, tin Sn, and indium In. It is composed of a silver alloy contained in the range of 50 to less than 15,000 ppm in total of the hardening additive composed of at least one selected element.

The hard metal alloy member according to the ninth embodiment of the present invention has a copper Cu content of 40.00% by weight or more, gadolinium Gd alone, gadolinium Gd and a rare earth element other than Gd, an alkaline earth element, and silicon. S i, boron: B, zirconium Z r, tin Sn, indium I n lead Pb, nickel Ni A total of 50 hardening additives composed of at least one element selected from the group consisting of It is composed of a copper alloy that is contained in the range of p pm to 15,000 ppm. For copper Cu alloys, the solution treatment temperature can be 600-2,500 ° C, and the B effect temperature can be 150-780 ° C. Particularly preferred conditions are a solution treatment temperature of 600 to 1600 ° C and an aging treatment temperature of 150 to 680 ° C. The processing efficiency at the time of processing is arbitrary, but the preferred range is the same as in the first embodiment.

Example 8 and Example 9 are metal alloy members made of copper Cu, and gadolinium Gd alone, gadolinium Gd and zirconium Zr are respectively added in appropriate amounts, and the above-described treatment is performed. And tensile strength. The hardness after processing and treatment at 315 ° C. for 2 hours was 219 Hv and 23 23ν. After the treatment at 810 ° CX30, it became 16 OHv and 13ΙΗν. The tensile strength was 53.2 kgf Zmm ² , and the high-purity copper Cu alloy of the present invention had improved hardness, tensile strength, and Young's modulus, and exhibited paneling properties. Easy to process and good workability. The Young's modulus is 13500 kgf / mm ² or more, and this value can be adjusted.

The metal alloy member made of the Cu alloy according to the embodiment is processed by adding the appropriate amount of a hardening additive composed of gadolinium Gd alone or in combination with another element, and performing the above-described processing. It shows unprecedented high value of 12 OHv or more in a forged alloy not added. In the case of processing, the processing rate is 50. /. It shows a value of 200 HV or more at a rate of 150 HV or more and a processing rate of 90% or more.

Comparative Example 7 is 4N copper Cu, and Comparative Example 8 is Cr / Zr copper.

It has been found that the addition of the zirconium Zr element further improves the properties of the above-mentioned noble metal alloys and metal alloys. Even when zirconium oxide was added, a remarkable improvement in characteristics was observed. Cu—Gd, Cu—Gd—Zr are examples of the additive alloys in which elements other than Cu are added to Cu at 50 to 15000 ppm, and other examples include Cu—Gd—Sr. , Cu—Gd—Ca, Cu—Gd—Zr, Cu—Gd—Sn, Cu—Gd—Zn, and Cu—Gd—In were evaluated as prototypes, and were the same as in Examples 8 and 9. In addition, the properties of hardness, tensile strength, Young's modulus, and heat resistance improved, and spring properties were exhibited. Easy to process and good workability.

It is composed of at least one element selected from the group consisting of copper Cu and zinc Zn, tin Sn, aluminum A1, nickel Ni, beryllium Be, lead Pb, manganese Mn, and indium In. An additive alloy obtained by adding the above element to a Cu alloy was subjected to trial manufacture and evaluation. The hardness, tensile strength, Young's modulus, heat resistance were improved, and spring properties were exhibited, as in the case of the Cu additive alloy. It is easy to process and has good workability.

The hard metal alloy member according to the tenth embodiment of the present invention has an iron Fe content of 40.00% by weight or more, gadolinium Gd alone, gadolinium Gd and a rare earth element other than Gd, an alkaline earth element, Hardening additive composed of at least one element selected from the group consisting of silicon Si, boron B, zirconium Zr, tin Sn, indium In or lead Pb, and nickel Ni 50 p in total It is composed of an iron alloy contained in the range of pm to 15,000 ppm. The solution treatment was performed at 820 ° C for 1 hour, and the aging treatment was performed at 480 ° C for 3 hours.

For iron Fe alloys, the solution treatment temperature can be 600 to 2800 ° C, and the B effect temperature can be 150 to 700 ° C. Particularly preferred conditions are a solution treatment temperature of 600 to 2000 ° C and an aging treatment temperature of 150 to 700 ° C. The processing efficiency at the time of processing is arbitrary, but the preferred range is the same as in the first embodiment.

Field Form 10, Field Form 1 The hardness of 1 Fe Fe alloy is 120Hv and 156HV. Tensile strength is 87 and 1 20 kg / mm ^2. The effect of adding the Fe Fe alloy of the present invention is remarkable. Almost no decrease in corrosion resistance, electrical resistance, etc. was observed even when adding 4 N iron Fe. The hardness, tensile strength, Young's modulus, and heat resistance improved, and one spring was produced. The Young's modulus is 22000 kgf / mm ² or more, and this value can be adjusted.

Comparative Example 7 is 99.94% by weight high purity iron.

Examples of additive alloys in which elements other than Fe are added to iron Fe at 50 to 15000 ppm are Fe-Gd, Fe-Gd-Si, and Fe-Gd-S. r, Fe-Gd-Ca, Fe-Gd-Zr, Fe-Gd-Sn, Fe-Gd-Zn, Fe-Gd-In, Fe-Gd-Mn As a result of evaluation, the hardness, tensile strength, Young's modulus and heat resistance were improved as in Examples 8 and 9, and panel properties were exhibited. Easy to process and good workability.

It is composed of at least one element selected from the group consisting of iron Fe and copper Cu, silicon Si, manganese Mn, nickel Ni, chromium Cr, molybdenum Mo, and cobalt Co. An alloy obtained by adding the above element to a Fe alloy was evaluated by trial production. The hardness, tensile strength, Young's modulus and heat resistance were improved and the spring property was exhibited, as in the case of the Fe alloy. Easy to process and workability is good. The hard metal alloy member according to the first embodiment of the present invention has an aluminum A1 content of 40.00% by weight or more, gadolinium Gd alone, gadolinium Gd and rare earth elements other than Gd, alkaline earth elements, Hardening additives composed of at least one element selected from the group consisting of silicon Si, boron B, zirconium Zr, tin Sn, indium I! 1 lead Pb, and nickel Ni It is composed of an aluminum alloy containing 50 ppm or more and less than 15000 ppm.

Aluminum A1 alloy can have a solution treatment temperature of 300-2000 ° C and a B effect temperature of 50-450 ° C. Particularly preferred conditions are a solution treatment temperature of 500 to 1600 ° C and an aging temperature of 50 to 400 ° C. The processing efficiency at the time of processing is arbitrary, but the preferred range is the same as in the first embodiment.

The hardness of the aluminum A1 alloy of Examples 10 and 11 is 76 Hv and 115 Hv, and the tensile strength is 55 kgf / mm ² and 81 kgf / mm ² . The aluminum A1 alloy of the present invention has improved hardness, tensile strength, Young's modulus, and heat resistance, and has paneling properties. Easy to process and good workability. The Young's modulus is 7400 kgf / mm ² or more, and this value can be adjusted. The ratio Comparative Examples 10 is a high-purity aluminum 99.90 wt ^_0/0.

Aluminum Addition of elements other than A1 to aluminum A1 from 50 to: L 5000 ppm is exemplified by Al—Gd and A1—Gd—Mn. In addition, AI—Gd—S r, Al—Gd—Ca, Al—Gd—Zr, Al—Gd—Sn, Al—Gd—Zn, Al—Gd—In, and A1-Gd—Si As in Example 10 and Example 11, hardness, tensile strength, Young's modulus, and heat resistance were improved, and spring properties were exhibited. Easy to process and workability.

It is composed of aluminum A1 and at least one element selected from the group consisting of copper Cu, iron Fe, manganese Mn, silicon Si, magnesium Mg, zinc Zn, tin Sn, and indium Iη. An alloy with the above elements added to the A1 alloy was evaluated as a prototype, but the hardness, tensile strength, Young's modulus, and heat resistance were improved, paneling was exhibited, and processing was similar to that of the A1 alloy. Good workability.

The hard metal alloy member according to the twelfth embodiment of the present invention has a magnesium Mg content of 40.00% by weight or more, gadolinium Gd alone, gadolinium Gd and rare earth elements other than Gd, alkaline earth elements, and silicon. A total of 50 hardening additives composed of at least one element selected from the group consisting of Si, boron B, zirconium Zr, tin Sn, indium In or lead Pb, and nickel Ni It is composed of a magnesium alloy that is contained in the range from ppm to less than 15000 ppm.

Magnesium Mg alloy can have a solution treatment temperature of 250-500 ° C and an aging temperature of 110-500 ° C. Particularly preferred conditions are a solution treatment temperature of 500 to 1000 ° C and an aging treatment temperature of 100 to 450 ° C. The processing efficiency at the time of processing is arbitrary, but the preferable range is the same as that of the first embodiment.

The hardness of magnesium Mg in Examples 14 and 15 was 81 Hv and 12ΙΗν, and the tensile strength Are 52 kgf / mm ² and 80. The solution treatment was performed at 390 ° C for 10 hours, and the aging treatment was performed at 260 ° C for 5 hours. The magnesium-Mg alloy of the present invention has improved hardness, tensile strength, Young's modulus, and heat resistance, and has a nematic property. Easy to process and good workability. Young's modulus is 4400 kgf / mm ² or more, was improved by about 15%. Comparative Examples 11 and 12 had a purity of 99.8 and a 99.99 weight of ⁰ /. Is pure magnesium.

Magnesium Examples of additive alloys in which elements other than Mg are added to Mg at 50 to 15000 ppm include Mg—Gd, Mg—Gd—Mn, and other alloys such as Mg—Gd—Sr and Mg—G d-Ca, Mg-Gd_Zr, Mg-Gd-Sn, Mg_Gd-Zn, Mg-Gd-In, and Mg-Gd-Si were evaluated as prototypes. Tensile strength, Young's modulus, heat resistance improved, and paneling was demonstrated. Easy to process and good workability.

Magnesium Mg and aluminum A1, Iron Fe, Aguchi, Zn, Manganese Mn, Zirconium Zr, Copper Cu, Lithium Li, Silicon Si From at least one element selected from the group consisting of An additive alloy in which the above elements were added to the constituted Mg alloy was evaluated as a trial, and the hardness, tensile strength, Young's modulus, and heat resistance were improved and the panel properties were exhibited, similarly to the above Mg-added alloy. The heat treatment method includes a patch treatment method and a continuous treatment method.

The hard metal alloy member according to the thirteenth embodiment of the present invention has a copper Cu content of 70.00% by weight or more, gadolinium Gd alone, gadolinium Gd and a rare earth element other than Gd, an alkaline earth element, A total of 50 hardening additives composed of at least one element selected from the group consisting of silicon Si, boron B, zirconium Zj :, tin Sn, indium In or lead Pb, and nickel Ni. It is composed of a copper alloy that is contained in the range from p pm to less than 15000 ppm. The hard metal alloy member according to the fourteenth embodiment of the present invention has an Fe content of 70.00% by weight or more, gadolinium Gd alone, gadolinium Gd and a rare earth element other than Gd, an alkaline earth element, A total of 50 hardening additives composed of at least one element selected from the group consisting of silicon Si, boron B, zirconium Zr, tin Sn, indium In or lead Pb, and nickel Ni It is composed of an iron alloy contained in the range from p pm to less than 15000 ppm. The hard metal alloy member according to the fifteenth embodiment of the present invention has an aluminum A1 content of 70.00% by weight or more, gadolinium Gd alone, gadolinium Gd and rare earth elements other than Gd, alkaline earth elements, Hardening additive consisting of at least one element selected from the group consisting of silicon Si, boron B, zirconium Zr, tin Sn, indium lead, lead Pb, and nickel Ni. It is composed of an aluminum alloy containing 50 ppm or more and less than 15000 ppm.

The hard metal alloy member according to the sixteenth embodiment of the present invention has a magnesium Mg content of 70.00% by weight or more, gadolinium Gd alone, gadolinium Gd and rare earth elements other than Gd, alkaline earth elements, silicon S i, Boron B, Zirconium Zr, Tin Sn, Indium I η Lead Pb, Nickel Ni Hardening additive composed of at least one element selected from the group consisting of 50 p Magnesium contained in the range of pm or more and less than 150 ppm It is composed of a Pum alloy.

The hard metal alloy member according to the seventeenth embodiment of the present invention has a Cu Cu content of 99.45% by weight or more, gadolinium Gd alone, gadolinium Gd and a rare earth element other than Gd, an alkaline earth element, Hardening additives composed of at least one element selected from the group consisting of silicon Si, boron B, zirconium Zr, tin Sn, indium In, lead Pb, and nickel Ni. It is composed of a copper alloy containing less than 15,000 ppm. The hard metal alloy member according to the eighteenth embodiment of the present invention has an Fe content of 99.45% by weight or more, gadolinium Gd alone, gadolinium Gd and a rare earth element other than Gd, an alkaline earth element, 50 pm total hardening additive composed of at least one element selected from the group consisting of silicon Si, boron B, zirconium Zr, tin Sn, indium In lead Pb, and nickel Ni It is composed of an iron alloy containing less than 15,000 ppm. The hard metal alloy member according to the nineteenth embodiment of the present invention has an aluminum A1 content of 99.45% by weight or more, gadolinium Gd alone, gadolinium Gd and rare earth elements other than Gd, alkaline earth elements, and silicon. A total of 50 hardening additives composed of at least one element selected from the group consisting of Si, boron B, zirconium Zr, tin Sn, indium lead, lead Pb, and nickel Ni It is composed of an aluminum alloy contained in the range of not less than ppm and less than 15000 ppm.

The hard metal alloy member according to the twentieth embodiment of the present invention has a magnesium Mg content of 99.45% by weight or more, gadolinium Gd alone, gadolinium Gd and rare earth elements other than Gd, alkaline earth elements, silicon S i, Boron B, Zirconium Zr, Tin Sn, Indium In or Lead Pb, Nickel Ni Hardening additive composed of at least one element selected from the group consisting of 50 p in total It is composed of a magnesium alloy contained in the range of pm to less than 15000 ppm.

The alloy applied to the embodiment is not particularly limited. The components other than the hardening additive are not particularly limited as long as they are those used in ordinary metal alloys. That is, the hardening additive is effective for existing general metal alloys. Manufacture of the alloy members according to these embodiments is the same as the actual form of the noble metal alloy. In the case of cycling, an alloy material having the above composition is produced, and the material is subjected to a solution treatment of heating to a predetermined temperature and then rapidly cooling. Thereafter, aging treatment is performed at a predetermined temperature as needed. In the case of a processed alloy, an alloy material having the above composition is manufactured, the material is subjected to a solution treatment in which the material is heated to a predetermined temperature and then rapidly cooled, and the material is processed into a predetermined shape. Later, the material is aged.

As a gadolinium-Gd composite additive for precious metal alloys, zirconium Zr, tin Sn, indium In, and manganese Mn are newly used and evaluated for trial production. It was easy to process and workability was good. The effect was found to be remarkable. For copper Cu alloy, iron Fe alloy, aluminum A1 alloy, and magnesium Mg alloy, Gd and rare earth elements, and Gd and aluminum earth elements were mixed, and the prototypes were evaluated. Hardness, tensile hardness, Young's modulus, etc. improved. It had a paneling property, was easy to process, and had good workability. Furthermore, similar results were obtained with the combined addition of Gd and calcium Ca, strontium Sr, silicon Si, beryllium Be, boron B, diconium Zr, tin Sn, indium In, and manganese Mn. It was found that the same effect as above was obtained.

The hard metal alloy member according to the embodiment of the present invention has a content of 37.50 to 99.995 weight of gold Au, platinum Pt, silver Ag, copper Cu, iron Fe, aluminum A1, magnesium Mg, and the like. ^_0/0, gadolinium Gd alone or rare earth elements other than gadolinium Gd,, § alkaline earth elements, silicon S i, aluminum a 1, manganese Mn, zirconium Z r, tin Sn, zinc Zn, indium I n, It is composed of a metal alloy containing a hardening additive composed of at least one element selected from the group consisting of boron B in a total range of 50 ppm to less than 15000 ppm.

Further, the hard metal alloy member according to the embodiment of the present invention is a metal alloy made of gold Au, platinum Pt alloy, silver Ag alloy, copper Cu alloy, iron Fe alloy, aluminum A1 alloy, magnesium Mg alloy. At least one or more metal alloys selected from the group include gadolinium Gd alone or rare earth elements other than gadolinium Gd, alkaline earth elements, silicon Si, aluminum Al, manganese Mn, zirconium Zr, tin Metal alloy containing a hardening additive composed of at least one element selected from the group consisting of Sn, zinc Zn, indium In, and boron B in a total range of 50 ppm to less than 15000 ppm It consists of. Thus the content of metal 37.5% 99. And 995 weight ^_0/0 alone gadolinium Gd or other elements and by the composite to become hardening additive added in an appropriate amount, processing the added Even hard alloys can achieve unprecedentedly high hardness and unprecedentedly high hardness, Young's modulus, tensile strength, heat resistance, and workability.

Gadolinium Gd is the most effective hardening element in consideration of the volume occupancy, and the improvement in heat resistance is remarkable. In particular, it has been found that extremely low Young's modulus can be obtained by adding Gd. As described above, since Gd has a large effect of improving hardness, Young's modulus and tensile strength, the amount of added calorie may be small, and a good color tone can be obtained without changing the color tone of the base alloy. Furthermore, since the addition amount is small and the occupied volume is small, the characteristics unique to the base alloy can be utilized.

The effect as a hardening additive is exhibited by Gd alone, but excellent properties are obtained due to the synergistic effect of complex addition with at least one element selected from the group consisting of the above elements other than Gd. Obtainable.

The hard metal member of the present invention is excellent in fff durability because it has high hardness, good strength and good corrosion resistance. In addition, it has a high Young's modulus, has paneling properties, and has high tensile strength and brittleness. And since it has such excellent mechanical properties, it is possible to reduce the weight and thickness. Furthermore, it has good color tone, and has good workability and good workability. The metal alloy member of the present invention has improved hardness, tensile strength and Young's modulus, has spring properties, has elongation and the like, is easy to process, and has good workability. Different from conventional alloy members. Further, it is a great feature that these characteristics can be adjusted according to the user's preference.

Therefore, the greatest feature is that an ultra-high performance noble metal alloy / metal alloy of the above elements and a unique noble metal alloy Z metal alloy adjusted according to the user's preference are obtained.

Claims

The scope of the claims

1. gold Au content from 37.5 to 98. A 45 weight ^_0/0, and gadolinium Gd, G zirconium other than d Z r, tin Sn, indium I n, at least is selected from the group consisting of manganese Mn A hard noble metal alloy member composed of a gold alloy containing one element in the range of 50 to less than 15,000 ppm.

2. is a Purachiniumu P t content 85.00 weight ^_0/0 or more, at least one selected gadolinium Gd, zirconium other than Gd Z j :, tin Sn, indium I n, from the group consisting of manganese Mn A hard noble metal alloy member composed of a bratium alloy containing the following elements in the range of 50 ppm to less than 15000 ppm.

3. The silver Ag content is 80.00% by weight or more, and at least one element selected from the group consisting of gadolinium Gd and zirconium Zr, tin Sn, indium In, and manganese Mn other than Gd. A hard precious metal alloy member composed of a silver alloy containing at least 50 ppm and less than 15000 ppm.

4. At least one or more precious metal alloys selected from the group consisting of gold Au, silver Ag, platinum Pt, palladium Pt, rhodium Rh, iridium Ir, norterium Ru, and osmium Os. Gadolinium Gd from 50 ppm to less than 15000 ppm in a noble metal alloy composed of the element and at least one element selected from the group consisting of zirconium Zr, indium In, tin Sn, and manganese Mn A hard precious metal alloy member contained in the range described above.

5. At least two elements selected from the precious metal alloy group consisting of gold Au, silver Ag, platinum Pt, palladium Pt, rhodium Rh, iridium Ir, norterium Ru, and osmium Os. , Zirconium Zr, indium In, tin Sn, manganese Mn, a precious metal alloy composed of at least one element selected from the group consisting of gadolinium Gd of 50 ppm or more and less than 15,000 ppm. Hard precious metal alloy members contained in the range.

6. The gold Au content is 98.45% by weight or more and is at least selected from the group consisting of gadolinium Gd, zirconium Zr other than Gd, tin Sn, indium In, and manganese Mn. A hard noble metal alloy member made of a gold alloy containing one element in the range of 50 pm or more and less than 15000 ppm.

7. At least one kind selected from the group consisting of gadolinium Gd, zirconium Zr other than Gd, tin Sn, indium In, and manganese Mn having a gold Au content of 99.45% by weight or more. A hard noble metal alloy member composed of a gold alloy containing 50 ppm or more and less than 15000 ppm of elements.

8. is a Purachuumu P t content 99.45 weight ^_0/0 or more, and gadolinium Gd, zirconium other than Gd Z r, tin Sn, indium I n, at least one selected from the group consisting of manganese Mn Element in the range of 50 ppm or more and less than 5000 pm A hard noble metal alloy member made of a platinum alloy.

9. The silver content is 37.50 to 99.45% by weight, and at least one selected from the group consisting of gadolinium Gd and zirconium Zr, tin Sn, indium In, and manganese Mn other than Gd. A hard noble metal alloy member composed of a silver alloy containing at least 50 ppm and less than 5000 ppm of various elements.

10. Hard noble metal alloy containing gadolinium Gd in the range of 50 pm or more and less than 15000 ppm in a noble metal alloy composed of at least one element selected from gold Au, manganese Mn, tin Sn and indium In Element.

1 1. Precious metal alloys composed of at least one element selected from gold Au, manganese Mn, tin Sn and indium In, gadolinium Gd, zirconium other than Gd Zr, tin Sn, indium In, manganese A hard noble metal alloy member made of a gold alloy containing at least one element selected from the group consisting of Mn in a range of 50 ppm or more and less than 15000 ppm.

12. Gadolinium Gd and at least one element selected from the group consisting of zirconium Zr, tin Sn, indium In, and manganese Mn having an Ag content of 99.45% by weight or more and other than Gd. Is a hard noble metal alloy member composed of a silver alloy containing at least 50 ppm and less than 50 ◦ ppm.

13. A silver alloy comprising gadolinium Gd in a range of 50 ppm to 15,000 ppm in a noble metal alloy composed of at least one element selected from silver Ag, manganese Mn, tin Sn and indium In A hard noble metal alloy member composed of

14. Precious metal alloy composed of at least one element selected from silver Ag and manganese Mn, tin Sn and indium In, gadolinium Gd, zirconium other than Gd Zr, tin Sn, indium In, manganese A hard noble metal alloy member composed of a silver alloy containing at least one element selected from the group consisting of Mn in a range of 50 ppm or more and less than 15000 ppm.

15. Copper Cu content from 40.00 to 99.45 on a weight ^_0/0, gadolinium G d and 50 p pm over 1 5000 p pm less hard metal alloy member made of a copper alloy which contains in the range .

16. Copper Cu content is 40.00-99.45 wt%, gadolinium Gd, rare earth element other than Gd, alkaline earth element, zirconium Zr, tin Sn, zinc Zn, zinc In, manganese A hard metal alloy member made of a copper alloy containing at least one element selected from the group consisting of Mn in a range of 50 ppm or more and less than 15000 ppm.

17. Iron Fe content 40.00 ~ 99.45 weight ⁰ /. A hard metal alloy member composed of an iron alloy containing gadolinium Gd in a range of 50 ppm or more and less than 15000 ppm

18. Iron Fe content is 40.00-99 · 45% by weight, gadolinium Gd, rare earth element other than Gd, alkaline earth element, zirconium Zr, tin Sn, zinc Zn, zinc In, A hard metal alloy member composed of an iron alloy containing at least one element selected from the group consisting of manganese Mn in a range of 50 ppm or more and less than 15000 ppm.

1 9. Aluminum A 1 content from 40.00 to 99.45 on a weight ^_0/0, hard metal alloy member is composed of an aluminum alloy which contains gadolinium in a range of less than 50 p pm or 15000 ppm.

20. Aluminum A 1 content from 40.00 to 99.45 on a weight ^_0/0, gadolinium Gd and rare earth elements other than Gd, alkaline-earth element, zirconium Z r, tin Sn, zinc Zn, indium I n A hard metal alloy member made of aluminum alloy containing at least one element selected from the group consisting of manganese and Mn in a range of 50 ppm to less than 15,000 ppm.

21. Magnesium Mg content 40.00 ~ 99.45 weight ⁰ /. A hard metal alloy member made of a magnesium alloy containing gadolinium Gd in a range of 50 ppm or more and less than 15000 ppm.

22. Magnesium Mg content from 40.00 to 99.45 on a weight ^_0/0, and gadolinium G d, rare earth elements other than Gd, alkaline-earth element, zirconium Z r, tin Sn, zinc Zn, indium I A hard metal alloy member composed of a magnesium alloy containing at least one element selected from the group consisting of n and manganese Mn in a range of 50 ppm or more and less than 15000 ppm.

23. Copper A hard metal alloy member composed of a copper alloy having a Cu content of 70.00% by weight or more and containing gadolinium Gd in a range of 50 ppm or more and less than 15000 ppm.

24. Copper Cu content is more than 70.00% by weight, gadolinium Gd, rare earth element other than Gd, alkaline earth element, zirconium Zr, tin Sn, zinc Zn, indium In, manganese Mn A hard metal alloy member composed of a copper alloy containing at least one element selected from the group consisting of at least 50 ppm and less than 15,000 ppm.

25. Iron Fe content should be more than 70.00% by weight, gadolinium Gd. (A hard metal alloy member composed of an iron alloy containing 1 in a range of 50 pm or more and less than 15000 ppm.

26. Fe Fe content is 70.00% by weight or more, gadolinium Gd, rare earth elements other than Gd, alkaline earth elements, zirconium Zr, tin Sn, zinc Zn, indium In, manganese Mn A hard metal alloy member composed of an iron alloy containing at least one element selected from the group consisting of at least 50 ppm and less than 15,000 ppm.

27. Aluminum alloy with aluminum A1 content of 70.00% by weight or more and containing gadolinium Gd in the range of 50 ppm to less than 15000 ppm Hard metal alloy members.

28. Aluminum A 1 content is 70.00% by weight or more and consists of gadolinium Gd, rare earth elements other than Gd, alkaline earth elements, zirconium Zr, tin Sn, zinc Zn, indium In, and manganese Mn A hard metal alloy member made of an aluminum alloy containing at least one element selected from the group in a range of 50 ppm to less than 15000 ppm.

29. Magnesium Mg content is at 70.00 wt ^_0/0 or more, hard metal alloy member composed of a magnesium alloy which contains gadolinium Gd in a range of less than 1 5000 p pm or 50 p pm.

30. Magnesium Mg content is 70.00% by weight or more, consisting of gadolinium Gd, rare earth elements other than Gd, alkaline earth elements, zirconium Zr, tin Sn, zinc Zn, indium In, and manganese Mn At least one element selected from the group

A hard metal alloy member composed of a magnesium alloy contained in the range of 50 ppm or more and less than 15000 ppm.

31. Copper Cu content is more than 99.45% by weight and gadolinium Gd is more than 50 ppm

A hard metal alloy member composed of a copper alloy contained in a range of less than 5000 ppm.

32. Copper Cu content is 99.45% by weight or more. From gadolinium Gd, rare earth element other than Gd, alkaline earth element, zirconium Zr, tin Sn, zinc Zn, indium In, manganese Mn A hard metal alloy member made of a copper alloy containing at least one element selected from the group consisting of at least 50 ppm and less than 5000 ppm.

33. Iron Fe content is more than 99.45% by weight and gadolinium Gd is more than 50 ppm

A hard metal alloy member composed of an iron alloy contained in a range of less than 5000 ppm.

34. Iron Fe content is 99.45 wt% or more, gadmium Gd, rare earth element other than Gd, alkaline earth element, zirconium Zr, tin Sn, zinc Zn, indium In, manganese Mn A hard metal alloy member made of an iron alloy containing at least one element selected from the group consisting of at least 50 ppm and less than 5000 ppm.

35. Aluminum A is 1 content of 99.45 wt ^_0/0 or more, hard quality metal alloy member configured gadolinium Gd an aluminum alloy which contains in a range of less than 50 p pm or 5000 p pm.

36. Aluminum A 1 content is 99.45 weight. /. Gadolinium Gd and at least one element selected from the group consisting of rare earth elements other than Gd, alkaline earth elements, zirconium Zr, tin Sn, zinc Zn, indium In, and manganese Mn. A hard metal alloy member composed of an aluminum alloy contained in the range of 50 pm or more and less than 5000 pm.

37. Magnesium Mg content 99. 45 weight ⁰ /. And a hard alloy composed of a magnesium alloy containing gadolinium Gd in a range of 50 ppm or more and less than 5000 pm. High quality metal alloy members.

38. Magnesium Mg content is 99.45% by weight or more, from gadolinium Gd and rare earth elements other than Gd, alkaline earth elements, zirconium Zr, tin Sn, zinc, Zn, indium In, manganese Mn A hard metal alloy member made of a magnesium alloy containing at least one element selected from the group consisting of not less than 50 ppm and less than 5000 ppm.

39. Copper Cu and zinc Zn, manganese Mn, tin Sn, aluminum A1, nickel nickle Ni, beryllium Be, lead Pb and indium I η at least one element selected from the group consisting of gadolinium and metal alloys A hard metal alloy member composed of a copper alloy containing Gd in the range of 50 ppm to less than 15000 ppm.

40. Copper Cu and zinc Zn, manganese Mn, tin Sn, aluminum A1, nickel Ni, beryllium Be, lead Pb and indium In selected from at least one element selected from gadolinium and metal alloys Gd and at least one element selected from the group consisting of rare earth elements other than Gd, alkaline earth elements, zirconium Zr, tin Sn, indium In, and manganese Mn at 50 ppm to less than 15,000 ppm Hard metal alloy members composed of copper alloys contained in the range.

41. Metals composed of at least one element selected from iron Fe and copper Cu, silicon Si, zinc Zn, manganese Mn, nickel Ni, chromium Cr, molybdenum Mo, and cobalt Co A hard metal alloy member composed of an iron alloy containing gadolinium Gd in the range of 50 ppm to less than 15000 ppm.

42. Metal alloys composed of at least one element selected from iron Fe and copper Cu, silicon Si, zinc Zn, manganese Mn, nickel Ni, chromium Cr, molybdenum Mo, and cobalt Co Gadolinium Gd and at least one element selected from the group consisting of rare earth elements other than Gd, alkaline earth elements, zirconium Zr, tin Sn, indium In, and manganese Mn at least 50 ppm and 15,000 A hard metal alloy member made of an iron alloy contained in the range of less than ppm.

43. Aluminum alloys and gadolinium in metal alloys composed of copper, Cu, manganese Mn, tin Sn, silicon Si, nickel Ni, magnesium Mg, zinc Zn and indium In A hard metal alloy member composed of an aluminum alloy containing Gd in the range of 50 ppm or more and less than 15000 pm.

44. Gadolinium in a metal alloy composed of at least one element selected from aluminum A1 and copper Cu, manganese Mn, tin Sn, silicon Si, nickele Ni, magnesium Mg, zinc Zn and indium In Gd and at least one element selected from the group consisting of rare earth elements other than Gd, alkaline earth elements, zirconium Zr, tin Sn, indium In, and manganese Mn are at least 50 ppm and less than 15,000 ppm A hard metal alloy member composed of an aluminum alloy contained in the above range.

45. Magnesium Mg and zinc Zn, manganese Mn, tin Sn, aluminum A1, zirconium Zr, copper Cu, lithium Li and silicon Si A hard metal alloy member composed of a magnesium alloy containing gadolinium Gd in the range of 50 ppm to less than 15000 ppm.

46. For metal alloys composed of at least one element selected from magnesium Mg and zinc Zn, manganese Mn, tin Sn, aluminum A1, zirconium Zr, copper Cu, lithium Li and silicon Si Gadolinium Gd and at least one element selected from the group consisting of rare earth elements other than Gd, alkali earth elements, zirconium Zr, tin Sn, indium In, and manganese Mn are not less than 50 ppm and not more than 15000 ppm. A hard metal alloy member composed of a magnesium alloy contained in the full range.

47. The solution treatment is characterized in that the metal alloy is heated at 200 ° C to 28 ° C and then rapidly cooled, and the aging treatment is performed by heating the metal alloy to 100 ° C to 1000 ° C. The method for producing a metal alloy described in the claim range.

48. The method for manufacturing a metal alloy according to claim, wherein after the solution treatment is performed, the processing and the B-effect treatment are alternately repeated. '

49. Metal alloys composed of two or more selected from the metal element group consisting of iron Fe, aluminum A1, magnesium Mg, copper Cu, and gadolinium Gd alone, or gadolinium Gd and other than gadolinium Gd Contains at least one of rare earth elements, alkaline earth elements, silicon Si, boron B, zirconium Zr, zinc Zn, tin Sn, indium In, lead Pb, and nickel Ni in a total of 50 to 15,000 ppm. A method for producing a hard metal alloy, comprising heating a metal alloy to a temperature higher than its solubility curve, uniformly dispersing gadmium Gd and other additives, and then rapidly cooling the metal alloy.

50. Gadolinium Gd alone or gadolinium in a metal alloy composed of one or more elements selected from the group consisting of the above-mentioned metal elements consisting of copper Cu, iron Fe, aluminum A1 and magnesium Mg Gd and at least one element selected from the group consisting of rare earth elements other than Gd, alkaline earth elements, lead Pb, silicon Si, zirconium Zr, tin Sn, zinc Zn, and indium In. A hard metal alloy member characterized by being contained in a total amount of 50 ppm or more and less than 15000 ppm.

51. The step of manufacturing the material of the noble metal alloy member and the metal alloy member according to the claim;

Subjecting the material to a solution treatment.

52. The step of manufacturing the material of the noble metal alloy member and the metal alloy member according to the claim;

Subjecting the material to solution treatment

Performing an aging treatment on the material before or after the processing.

53. The step of manufacturing the material of the noble metal alloy member and the metal alloy member according to the claim;

Subjecting the material to solution treatment Processing the material into a predetermined shape;

Performing an aging treatment on the material before or after the processing.

54. The method for producing a hard metal alloy member according to any one of claims, wherein the solution treatment temperature is 300 to 2800 ° C and the aging temperature is 100 to 800 ° C.

55. The method for producing a hard metal alloy member according to any one of claims, wherein the solution treatment temperature is 300 to 2500 ° C and the aging treatment temperature is 50 to 600 ° C.

56. The method for producing a hard metal alloy member according to any one of claims, wherein the solution treatment temperature is 250 to 2200 ° C and the aging treatment degree is 100 to 500 ° C.

57. Zirconium oxide instead of zirconium Zr as additive in metal alloy members

Method for producing a metal alloy, characterized in that to Z r 0 ₂ contained and its composition.

58. The method according to claim metal alloy zirconium oxide and zirconium Z r as an additive member Z r 0 ₂ metal alloy, characterized in that to free organic and its composition.

Room

Au Pt Ag Cu Mg Gd Sr Zr Sn In Cr Rh Example 1-99.85 0,09 0.06

Example 2 99.85 0.09 o.oe

Comparative Example 1 99.85 0.15

Comparative Example 2 99.99

Example 3 99.7 0.15 0.02 0.03

Example 4 99.7 0.15 0.05

Comparative Example 3 99.99

Comparative Example 4 90.0 10.0 Example 5 99.50 0.20 0.10 0. ^ 0

Example 6 99.50 0.20 0.10 0.20

Example 7 99.50 0.20 0.10 0.20

99.99

Comparative Example 6 92.5 7.5

Example 8 99.8 0.20

Example 9 99.8 0.15 0.05

Comparative Example 7 99.99

Comparative Example 8 99.6 0.04 0.10 0.25

Fig. 2

Softening characteristics (H v) Tensile strength Processing temperature Strength Elongation 150Ό Χ 30 minutes 250 350 450 (kgf / mm ² ) (%)

1 170 171 162 135 135 81.6 4.1 Example

2 173 173 155 125 80.6 4.0 Comparative example

1 123 125 120 108

Comparative example

2 58 57 27 23 22.0 3.5 Fig. 3

Fig. 4

Softening characteristics (Hv)

Temperature treatment 400 600 800 Tensile strength

, 200 ° C. for 30 minutes (k fmm ") Example 5 174 172 134 121 56 Example 6 169 167 127 115 52

Fig. 5

Softening characteristics (Hv) Tensile test Temperature treatment 400 600 800 (kgfmm ² ) 200 ° C for 30 minutes

Example 8 219 210 205 160 53.2 Example 9 230 211 192 131

Comparative Example 7 100 45 45 45 30.0 Comparative Example 8 142 141 90 52 43.1 6 Figure

Fig. 7

Fig. 8

Replacement form (Rule 26)