CN110541097B - Friction-resistant high-performance magnesium alloy material and preparation method thereof - Google Patents
Friction-resistant high-performance magnesium alloy material and preparation method thereof Download PDFInfo
- Publication number
- CN110541097B CN110541097B CN201910934619.2A CN201910934619A CN110541097B CN 110541097 B CN110541097 B CN 110541097B CN 201910934619 A CN201910934619 A CN 201910934619A CN 110541097 B CN110541097 B CN 110541097B
- Authority
- CN
- China
- Prior art keywords
- magnesium alloy
- alloy material
- friction
- rolling
- resistant high
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 110
- 239000000956 alloy Substances 0.000 title claims abstract description 108
- 238000002360 preparation method Methods 0.000 title abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 46
- 230000032683 aging Effects 0.000 claims abstract description 36
- 239000011777 magnesium Substances 0.000 claims abstract description 27
- 238000005266 casting Methods 0.000 claims abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims description 26
- 229910045601 alloy Inorganic materials 0.000 claims description 24
- 238000003723 Smelting Methods 0.000 claims description 17
- 229910052749 magnesium Inorganic materials 0.000 claims description 15
- 229910052771 Terbium Inorganic materials 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 8
- 229910052689 Holmium Inorganic materials 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
- B21B3/003—Rolling non-ferrous metals immediately subsequent to continuous casting, i.e. in-line rolling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
The invention relates to a friction-resistant high-performance magnesium alloy material and a preparation method thereof, wherein the friction-resistant high-performance magnesium alloy material comprises the following components in parts by weight: 0.5-2.0 wt.% of Tb, 0.5-3.0 wt.% of Ho, 1.00-2.00 wt.% of Ni, 0.60-1.00 wt.% of Mn, and the balance of Mg and inevitable other impurities, wherein the content of impurities is not higher than 0.03 wt.%. Wherein the mass ratio of Tb + Ho to Ni is 1.5: 1-3.0: 1. According to the components and the proportion, the friction-resistant high-performance magnesium alloy material is prepared through specific casting, rolling and aging processes, has higher hardness and strength, has a friction coefficient of 0.22-0.30 under the condition of no lubrication, and has friction resistance obviously superior to that of traditional commercial magnesium alloy materials such as AZ31, AZ81 and AZ 91.
Description
Technical Field
The invention relates to the technical field of high-performance magnesium alloy materials, in particular to a friction-resistant high-performance magnesium alloy material and a preparation method thereof.
Background
As the lightest metal structural material, the magnesium alloy not only has high specific strength and specific rigidity, but also has the characteristics of shock absorption, noise resistance, electronic shielding, high-energy particle penetration resistance and the like. In recent years, the application range of magnesium alloys in the fields of automobile manufacturing, aerospace, weaponry, and the like is expanding by virtue of unique performance advantages. More and more magnesium alloys are developed successively, and the magnesium alloys are adopted to replace the traditional materials such as steel, aluminum alloy and the like, so that the weight of structural parts and mechanical equipment can be greatly reduced. However, during the actual service process, magnesium alloy parts inevitably contact with other materials, and generate friction and wear phenomena due to relative movement. The friction and wear often have great influence on the service life and reliability of mechanical parts, and are one of the main reasons for failure of the mechanical parts. Therefore, in consideration of safety design, under the large background of rapid development of industries such as automobile manufacturing, aerospace and the like and urgent need of weight reduction of weapons and equipment in China, the development of the high-performance friction-resistant magnesium alloy material has important significance.
The above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.
Disclosure of Invention
In view of the defects in the prior art, the invention provides the friction-resistant high-performance magnesium alloy material and the preparation method thereof, the magnesium alloy material has equivalent hardness and higher strength, and simultaneously has excellent friction resistance, low processing cost, simple preparation process, easily controlled parameters and suitability for large-scale industrial production.
The inventor finds that the magnesium alloy material prepared by adding Tb, Ho and Ni elements and Mn elements with specific mass into a Mg alloy matrix according to specific mass ratio and then utilizing specific casting, rolling and aging processes not only has higher strength and hardness, but also has excellent friction resistance. Therefore, based on the above findings, the present invention adopts the following technical means [1] to [2 ].
[1] The magnesium alloy material with friction resistance and high performance comprises the following components:
Tb:0.5～2.0wt.％；
Ho:0.5～3.0wt.％；
Ni:1.00～2.00wt.％；
Mn:0.60～1.00wt.％；
the balance being Mg and unavoidable impurity elements in amounts not higher than 0.03 wt.%, the unavoidable impurity elements mainly including Fe, Ni, Cu, O, S, P, and the like.
The friction-resistant high-performance magnesium alloy material according to the aspect of [1], wherein,
the mass ratio of Tb + Ho alloyed with magnesium to Ni element is 1.5: 1-3.0: 1.
The friction-resistant high-performance magnesium alloy material according to the aspect of [1], wherein,
the mass ratio of Tb + Ho alloyed with magnesium to Ni element is 2.0: 1-3.0: 1;
the friction-resistant high-performance magnesium alloy material according to the aspect of [1], wherein,
the content of Ni element is 1.2-1.8 wt.%.
The friction-resistant high-performance magnesium alloy material according to the aspect of [1], wherein,
the content of Mn element is 0.80-1.00 wt.%.
The invention adds Tb, Ho and Ni elements in a magnesium alloy containing Tb, Ho, Ni and Mn elements according to a specific mass ratio, adds Mn elements according to a specific mass, improves and designs a magnesium alloy material, and prepares a friction-resistant high-performance magnesium alloy through specific casting, rolling, aging and other processes, wherein the Vickers hardness of the magnesium alloy material is 80-105 Hv, the yield strength is 320-340 MPa, the tensile strength is 330-376 MPa, and the elongation is 8.5-12.8%. More importantly, the magnesium alloy material has excellent friction resistance, the friction coefficient of the alloy is 0.22-0.30 under the non-lubrication condition, and the friction resistance of the alloy is obviously superior to that of traditional commercial magnesium alloy materials such as AZ31, AZ81 and AZ 91.
[2] The method for preparing the friction-resistant high-performance magnesium alloy material in the item [1], which comprises the following steps: and mixing and smelting metal and/or intermediate alloy containing Tb, Ho, Ni, Mn and Mg to form the magnesium alloy material.
The method according to the scheme of item [2] above, comprising:
-preheating the metallic starting material of item [1] and melt casting to obtain an as-cast magnesium alloy;
-rolling the as-cast magnesium alloy;
and (4) carrying out aging treatment on the magnesium alloy material after rolling treatment to obtain the magnesium alloy material.
The method of the embodiment of [2] above specifically comprises:
1) melting and casting: adding Mg, Mg-Tb intermediate alloy, Mg-Ho intermediate alloy and Ni into a smelting furnace under the action of protective gas, heating to 750-760 ℃, cooling to 720-730 ℃ after Mg, Mg-Tb, Mg-Ho and Ni are melted, adding Mn, and casting to obtain as-cast magnesium alloy after Mn is melted;
2) rolling: preheating the as-cast magnesium alloy at 400-420 ℃, and rolling after heat preservation for 3-8 h;
3) aging treatment: and (3) carrying out aging treatment on the magnesium alloy material after the rolling treatment to obtain the magnesium alloy material.
In the embodiment described in item [2] above, the protective gas is specifically nitrogen.
In the scheme of the item [2], the mass ratio of the Mg, the Mg-Tb master alloy, the Mg-Ho master alloy, the Mn and the Ni is set according to the formula of the friction-resistant high-performance magnesium alloy material of the item [1 ].
In the scheme of item 2, the rolling temperature of the rolling is 350-380 ℃, the rolling is carried out for 2-3 times, and the reduction of each time is 16-25%.
In the scheme of the item [2], the temperature of the aging treatment is 220-240 ℃, the aging time is 8-10 h, and finally the friction-resistant high-performance magnesium alloy material is obtained.
In the friction-resistant high-performance magnesium alloy containing Tb, Ho, Ni and Mn elements, the (Tb + Ho) and the Ni element have a specific mass ratio, the Mn element is added according to specific mass, the magnesium alloy material is improved and designed, and the friction-resistant high-performance magnesium alloy material is prepared through melt casting, rolling and aging treatment.
The invention has the beneficial effects that:
in the friction-resistant high-performance magnesium alloy containing Tb, Ho, Ni and Mn elements, the (Tb + Ho) and the Ni element have a specific mass ratio, the Mn element is added according to the specific mass, the magnesium alloy material is improved, the Vickers hardness of the produced and prepared magnesium alloy material is 80-105 Hv, the room-temperature yield strength is 320-340 MPa, the tensile strength is 330-376 MPa, and the elongation is 8.5-12.8%. Meanwhile, the friction coefficient of the alloy is 0.22-0.30 under the condition of no lubrication, and the friction resistance of the alloy is obviously superior to that of traditional commercial magnesium alloy materials such as AZ31, AZ81 and AZ 91. The material has wider application space due to higher hardness, strength and friction resistance, and the service life and reliability of mechanical parts prepared from the material are obviously improved.
The invention adopts the technical scheme to provide the model essay, makes up the defects of the prior art, and has reasonable design and convenient operation.
Detailed Description
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The present invention uses the methods and materials described herein; other suitable methods and materials known in the art may be used. The materials, methods, and examples described herein are illustrative only and are not intended to be limiting. All publications, patent applications, patents, provisional applications, database entries, and other references mentioned herein, and the like, are incorporated by reference herein in their entirety. In case of conflict, the present specification, including definitions, will control.
The invention provides a friction-resistant high-performance magnesium alloy material, which comprises the following components: 0.5-2.0 wt.% Tb, 0.5-3.0 wt.% Ho, 1.00-2.00 wt.% Ni, 0.60-1.00 wt.% Mn; the balance of Mg and inevitable impurity elements such as Fe, Ni, Cu, O, S, P and the like, wherein the content of the impurity elements is not higher than 0.03 wt%; wherein the mass ratio of Tb + Ho to Ni is 1.5: 1-3.0: 1.
The invention also provides a method for preparing the friction-resistant high-performance magnesium alloy material, which comprises the following steps: and mixing and smelting metal and/or intermediate alloy containing Tb, Ho, Ni, Mn and Mg to form the magnesium alloy material.
The method further comprises the steps of:
-preheating the metallic starting material of item [1] and melt casting to obtain an as-cast magnesium alloy;
-rolling the as-cast magnesium alloy;
and (4) carrying out aging treatment on the magnesium alloy material after rolling treatment to obtain the magnesium alloy material.
The method further comprises the following detailed steps:
1) melting and casting: adding Mg, Mg-Tb intermediate alloy, Mg-Ho intermediate alloy and Ni into a smelting furnace under the action of protective gas, heating to 750-760 ℃, cooling to 720-730 ℃ after Mg, Mg-Tb, Mg-Ho and Ni are melted, adding Mn, and casting to obtain as-cast magnesium alloy after Mn is melted;
2) rolling: preheating the as-cast magnesium alloy at 400-420 ℃, preserving heat for 3-8 h, and then rolling at 350-380 ℃ for 2-3 times, wherein the rolling reduction of each time is 16-25%;
3) aging treatment: and (3) carrying out aging treatment on the magnesium alloy material after rolling treatment at the temperature of 220-240 ℃ for 8-10 h to obtain the magnesium alloy material.
Example 1: formula 1 of a friction-resistant high-grade magnesium alloy material and a preparation method thereof are as follows:
the embodiment provides a friction-resistant high-performance magnesium alloy material, which comprises the following components: 1.6 wt.% of Tb, 1.3 wt.% of Ho, 1.8 wt.% of Ni, 0.8 wt.% of Mn, and the balance of Mg and impurities with the content of not higher than 0.03 wt.%. In this example, (Tb + Ho): Ni ═ 1.61: 1.0.
The method for preparing the friction-resistant high-performance magnesium alloy material comprises the following steps:
1) melting and casting: adding Mg, Mg-Tb intermediate alloy, Mg-Ho intermediate alloy and Ni into a smelting furnace under the protection of nitrogen, heating to 750 ℃, cooling to 720 ℃ after Mg, Mg-Tb, Mg-Ho and Ni are melted, adding Mn, and casting to obtain cast magnesium alloy after Mn is melted;
2) rolling: preheating the as-cast magnesium alloy at 400 ℃, preserving heat for 5 hours, and then rolling;
3) aging treatment: and (3) carrying out aging treatment on the magnesium alloy material after the rolling treatment to obtain the magnesium alloy material.
The above method includes the following a) to c) limiting factors:
a) the mass ratio of the Mg, the Mg-Tb master alloy, the Mg-Ho master alloy and the Mn is set according to the formula of the friction-resistant high-performance magnesium alloy material in the embodiment;
b) the rolling temperature is 360 ℃, the rolling is carried out for 2 times, and the reduction of each time is 20%;
d) the temperature of the aging treatment is 230 ℃, the aging time is 8h, and finally the friction-resistant high-performance magnesium alloy material is obtained.
Example 2: formula 2 of a friction-resistant high-grade magnesium alloy material and a preparation method thereof are as follows:
the embodiment provides another friction-resistant high-performance magnesium alloy material, and the alloy comprises the following components: 1.50 wt.% of Tb, 1.50 wt.% of Ho, 1.00 wt.% of Ni, 1.00 wt.% of Mn, and the balance of Mg and impurities with the content of not more than 0.03 wt.%. In this example, (Tb + Ho): Ni ═ 3.0: 1.0.
The method for preparing the friction-resistant high-performance magnesium alloy material is basically the same as that of the embodiment 1, except that:
smelting: during smelting, firstly heating to 750 ℃, then cooling to 730 ℃, and then adding Mn;
rolling: the rolling temperature is 380 ℃, the rolling is carried out for 2 times, and the reduction of each time is 20 percent;
aging: the aging temperature is 220 ℃, and the aging time is 10 h.
Example 3: formula 3 of the friction-resistant high-grade magnesium alloy material and the preparation method thereof are as follows:
the embodiment provides another friction-resistant high-performance magnesium alloy material, and the alloy comprises the following components: 0.60 wt.% of Tb, 1.80 wt.% of Ho, 1.20 wt.% of Ni, 0.80 wt.% of Mn and the balance of Mg and impurities with the content of not higher than 0.03 wt.%. In this example, (Tb + Ho): Ni ═ 2.0: 1.0.
The method for preparing the friction-resistant high-performance magnesium alloy material is basically the same as that of the embodiment 1, except that:
smelting: during smelting, firstly heating to 750 ℃, then cooling to 730 ℃, and then adding Mn;
rolling: the rolling temperature is 380 ℃, the rolling is carried out for 2 times, and the reduction of each time is 25 percent;
aging: the aging temperature is 220 ℃, and the aging time is 8 h.
Example 4: formula 4 of a friction-resistant high-grade magnesium alloy material and a preparation method thereof are as follows:
the embodiment provides another friction-resistant high-performance magnesium alloy material, and the alloy comprises the following components: 2.00 wt.% of Tb, 1.50 wt.% of Ho, 2.00 wt.% of Ni, 1.00 wt.% of Mn, and the balance of Mg and impurities with the content of not higher than 0.03 wt.%. In this example, (Tb + Ho): Ni ═ 1.75: 1.0.
The method for preparing the friction-resistant high-performance magnesium alloy material is basically the same as that of the embodiment 1, except that:
smelting: during smelting, firstly heating to 760 ℃, then cooling to 720 ℃, and then adding Mn;
rolling: the rolling temperature is 350 ℃, the rolling is carried out for 3 times, and the reduction of each time is 16 percent;
aging: the aging temperature is 220 ℃, and the aging time is 10 h.
Example 5: formula 5 of the friction-resistant high-grade magnesium alloy material and the preparation method thereof are as follows:
the embodiment provides another friction-resistant high-performance magnesium alloy material, and the alloy comprises the following components: 2.00 wt.% of Tb, 1.00 wt.% of Ho, 1.00 wt.% of Ni, 0.60 wt.% of Mn, and the balance of Mg and impurities with the content of not higher than 0.03 wt.%. In this example, (Tb + Ho): Ni ═ 3.0: 1.0.
The method for preparing the friction-resistant high-performance magnesium alloy material is basically the same as that of the embodiment 1, except that:
smelting: during smelting, firstly heating to 760 ℃, then cooling to 720 ℃, and then adding Mn;
rolling: the rolling temperature is 350 ℃, the rolling is carried out for 3 times, and the reduction of each time is 20 percent;
aging: the aging temperature is 220 ℃, and the aging time is 10 h.
Example 6: formula 6 of the friction-resistant high-grade magnesium alloy material and the preparation method thereof are as follows:
the embodiment provides another friction-resistant high-performance magnesium alloy material, and the alloy comprises the following components: 0.50 wt.% of Tb, 2.50 wt.% of Ho, 1.60 wt.% of Ni, 0.80 wt.% of Mn and the balance of Mg and impurities with the content of not higher than 0.03 wt.%. In this example, (Tb + Ho): Ni ═ 1.875: 1.0.
The method for preparing the friction-resistant high-performance magnesium alloy material is basically the same as that of the embodiment 1, except that:
smelting: during smelting, firstly heating to 760 ℃, then cooling to 720 ℃, and then adding Mn;
rolling: the rolling temperature is 350 ℃, the rolling is carried out for 3 times, and the reduction of each time is 20 percent;
aging: the aging temperature is 230 ℃, and the aging time is 10 h.
Comparative examples D7 to D12:
comparative examples D7 to D12 each provide a magnesium alloy material, the detailed composition ratios of which are shown in table 1, and the manufacturing method of which is the same as that of example 1.
TABLE 1 composition ratio of magnesium alloy material
Experimental example 1:
the magnesium alloy materials of examples 1 to 6 and comparative examples D7 to D12 were used as experimental subjects, and the vickers hardness, yield strength, and tensile strength were measured at room temperature, and the statistical results are shown in table 2.
TABLE 2 hardness and Strength test results of magnesium alloy materials
As can be seen from table 2, the magnesium alloy materials in examples 1 to 6 of the preferred embodiment of the present application have higher hardness and strength, and the performance thereof is significantly improved compared to the magnesium alloy lacking a certain unitary component among Tb, Ho, Ni and Mn, and it should be seen that the mass ratio of Tb + Ho to Ni and the content of Mn greatly contribute to the overall performance of the magnesium alloy material.
Experimental example 2:
the friction coefficients of the magnesium alloy materials in examples 1 to 6 and comparative examples D7 to D12 were measured under a non-lubricating condition, respectively, and compared with those of conventional magnesium alloy materials AZ31, AZ81, and AZ91, and the friction coefficients are listed in table 3. As can be seen from the data in Table 3, the friction-resistant high-performance magnesium alloy material provided by the invention has a friction coefficient of 0.22-0.30 under the non-lubrication condition, and the friction-resistant performance of the material is obviously superior to that of traditional commercial magnesium alloys such as AZ31, AZ81 and AZ91 and materials such as comparative examples D7-D12.
TABLE 3 Friction coefficient test results for magnesium alloy materials
Conventional techniques in the above embodiments are known to those skilled in the art, and therefore, will not be described in detail herein.
While the above detailed description has shown, described, and pointed out novel features as applied to various embodiments, it will be understood that various omissions, substitutions, and changes in the form and details of the device or method illustrated may be made without departing from the spirit of the disclosure. In addition, the various features and methods described above may be used independently of one another, or may be combined in various ways. All possible combinations and sub-combinations are intended to fall within the scope of the present disclosure. Many of the embodiments described above include similar components, and thus, these similar components are interchangeable in different embodiments. While the invention has been disclosed in the context of certain embodiments and examples, it will be understood by those skilled in the art that the invention extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses and obvious modifications and equivalents thereof. Accordingly, the invention is not intended to be limited by the specific disclosure of preferred embodiments herein.
Claims (9)
1. The friction-resistant high-performance magnesium alloy material is characterized by comprising the following components in parts by weight:
Tb:0.5～2.0wt.％；
Ho:0.5～3.0wt.％；
Ni:1.00～2.00wt.％；
Mn:0.60～1.00wt.％；
the balance being Mg and inevitable impurity elements in amounts not higher than 0.03 wt.%;
the mass ratio of Tb + Ho alloyed with magnesium to Ni element is 1.5: 1-3.0: 1;
the Vickers hardness of the magnesium alloy material is 80-105 Hv, the yield strength is 320-340 MPa, the tensile strength is 330-376 MPa, the elongation is 8.5-12.8%, and the friction coefficient is 0.22-0.30 under the non-lubricating condition.
2. The magnesium alloy material according to claim 1, characterized in that:
the mass ratio of Tb + Ho alloyed with magnesium to Ni element is 2.0: 1-3.0: 1.
3. The magnesium alloy material according to claim 1, characterized in that:
the content of Ni element is 1.2-1.8 wt.%.
4. The magnesium alloy material according to claim 1, characterized in that:
the content of Mn element is 0.80-1.00 wt.%.
5. A method for preparing the friction-resistant high-performance magnesium alloy material as defined in any one of claims 1 to 4, which is characterized by comprising the following steps: and mixing and smelting metal and/or intermediate alloy containing Tb, Ho, Ni, Mn and Mg to form the magnesium alloy material.
6. The method of claim 5, wherein: the method comprises the following steps:
-preheating a metal feedstock and melt casting to obtain an as-cast magnesium alloy;
-rolling the as-cast magnesium alloy;
and (4) carrying out aging treatment on the magnesium alloy material after rolling treatment to obtain the magnesium alloy material.
7. The method according to claim 6, characterized in that it comprises in particular:
1) melting and casting: adding Mg, Mg-Tb intermediate alloy, Mg-Ho intermediate alloy and Ni into a smelting furnace under the action of protective gas, heating to 750-760 ℃, cooling to 720-730 ℃ after Mg, Mg-Tb, Mg-Ho and Ni are melted, adding Mn, and casting to obtain as-cast magnesium alloy after Mn is melted;
2) rolling: preheating the as-cast magnesium alloy at 400-420 ℃, and rolling after heat preservation for 3-8 h;
3) aging treatment: and (3) carrying out aging treatment on the magnesium alloy material after the rolling treatment to obtain the magnesium alloy material.
8. The method according to claim 6 or 7, characterized in that: the rolling temperature of the rolling is 350-380 ℃, the rolling is carried out for 2-3 times, and the reduction of each time is 16-25%.
9. The method according to claim 6 or 7, characterized in that: the temperature of the aging treatment is 220-240 ℃, and the aging time is 8-10 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934619.2A CN110541097B (en) | 2019-09-29 | 2019-09-29 | Friction-resistant high-performance magnesium alloy material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934619.2A CN110541097B (en) | 2019-09-29 | 2019-09-29 | Friction-resistant high-performance magnesium alloy material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110541097A CN110541097A (en) | 2019-12-06 |
| CN110541097B true CN110541097B (en) | 2021-08-10 |
Family
ID=68715041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910934619.2A Active CN110541097B (en) | 2019-09-29 | 2019-09-29 | Friction-resistant high-performance magnesium alloy material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110541097B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405417A (en) * | 2006-03-20 | 2009-04-08 | 国立大学法人熊本大学 | High-strength high-toughness magnesium alloy and method for producing the same |
| CN102337441A (en) * | 2011-10-27 | 2012-02-01 | 哈尔滨工业大学 | Ultrahigh-strength rare earth-magnesium alloy board and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008075127A (en) * | 2006-09-21 | 2008-04-03 | Chiba Inst Of Technology | Method of producing magnesium alloy |
-
2019
- 2019-09-29 CN CN201910934619.2A patent/CN110541097B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101405417A (en) * | 2006-03-20 | 2009-04-08 | 国立大学法人熊本大学 | High-strength high-toughness magnesium alloy and method for producing the same |
| CN102337441A (en) * | 2011-10-27 | 2012-02-01 | 哈尔滨工业大学 | Ultrahigh-strength rare earth-magnesium alloy board and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110541097A (en) | 2019-12-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6165171B2 (en) | Titanium alloys with improved properties | |
| WO2019034837A1 (en) | Method of forming a cast aluminium alloy | |
| US11286542B2 (en) | Aluminum alloy for die casting and functional component using the same | |
| CN114921684B (en) | High strength titanium alloy | |
| CN103097559A (en) | High strength and ductility alpha/beta titanium alloy | |
| IL185262A (en) | Steel compositions, methods of forming the same and articles formed therefrom | |
| CA3065136C (en) | High-strength aluminium-based alloy | |
| CN102206784A (en) | Friction disk material | |
| CN104532056A (en) | High temperature titanium alloy and preparation method thereof | |
| CN109161752B (en) | Heat-resistant creep-resistant magnesium alloy and preparation method thereof | |
| US4255193A (en) | Method of manufacture of sintered pressed pieces of iron reinforced by iron oxides | |
| CN104328305B (en) | A kind of high-strength brass alloy bar | |
| CN110564996B (en) | High-strength magnesium alloy material and preparation method thereof | |
| CN110541097B (en) | Friction-resistant high-performance magnesium alloy material and preparation method thereof | |
| CN109554644B (en) | Aluminum alloy forging and preparation process thereof | |
| CN104195467A (en) | Steel material of automobile bracket with rare earth elements and manufacturing process thereof | |
| CN112442619B (en) | High-strength high-toughness aluminum alloy wheel die forging and preparation method thereof | |
| RU2385358C1 (en) | Cast alloy on aluminium base | |
| CN103667931A (en) | Anti-oxidation ferrite stainless steel containing aluminum and rare earth | |
| CN114574703A (en) | Method for recycling high-temperature alloy waste material simultaneously in short process | |
| CN109868397B (en) | High-toughness high-modulus aluminum alloy material and die casting process thereof | |
| JP7318284B2 (en) | Aluminum alloys for compressor sliding parts and forgings for compressor sliding parts | |
| CN114635075A (en) | High-strength high-ductility and toughness blade material | |
| CN112695216A (en) | Preparation method of manganese brass alloy with three strengthening phases | |
| RU2278178C1 (en) | Nickel-based alloy and article made of the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |