WO1996033292A1 - Alliage de titane a resistance et ductilite elevees et son procede de preparation - Google Patents
Alliage de titane a resistance et ductilite elevees et son procede de preparation Download PDFInfo
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- WO1996033292A1 WO1996033292A1 PCT/JP1996/001078 JP9601078W WO9633292A1 WO 1996033292 A1 WO1996033292 A1 WO 1996033292A1 JP 9601078 W JP9601078 W JP 9601078W WO 9633292 A1 WO9633292 A1 WO 9633292A1
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- weight
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- titanium alloy
- elongation
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
Definitions
- the present invention relates to a high-strength and high-ductility titanium alloy and a method for producing the same.
- the present invention relates to a high-strength and high-ductility titanium alloy having a high strength of 90 OMPa or more and an elongation of 15% or more, preferably 20% or more, and a method for producing the same.
- high-strength titanium alloys ⁇ + -type alloys and A-type alloys containing A ⁇ , V, Zr, Sn, Cr, o, etc. are known. These conventional alloys generally have a tensile strength of 90 OMPa or more, and few alloys have a strength level of about 700 to 90 OMPa with pure titanium.
- a typical Ti + S type alloy is a Ti-16A ⁇ -4V alloy, which has a tensile strength of 800 to 100 MPa and an elongation of 10 to 10 in annealed condition. 15%.
- Ti-3A ⁇ -2.5V is an alloy having a lower strength level than this, and has excellent ductility with a tensile strength of 700 to 800MPa.
- Ti-1A-2.5 Fe alloy (1984 Deutshce Gesel lshaft fur metal lku) in which V, which is an expensive alloying element, is replaced with inexpensive Fe.
- V which is an expensive alloying element
- Ti titanium Science and Technology published by nde EV, pl335), Ti-6A-1.7Fe-0.ISi alloy, Ti-6.5A-1.3Fe alloy (Advanced Material & Processes, 1993, p43) Proposed equally.
- the above proposed alloy contains a large amount of A, has high strength and low ductility during hot work, and therefore has poor hot workability compared to pure Ti, and the use of Fe instead of V Although the raw material cost is reduced, there is the problem that the hot working cost is still high.
- a high-strength titanium alloy with excellent ductility that can be formed into various shapes such as a sheet material and a bar material by ordinary rolling without the need for such a special forming method is disclosed in Japanese Patent Application Laid-Open No. H11-252747. It is disclosed in the gazette.
- the alloy disclosed herein contains 0, N, and Fe as strengthening elements, and the content of these strengthening elements is 0.1 to 0.8% by weight, and the oxygen equivalent amount.
- the above alloys cannot always have high strength and high ductility at the same time, and development of an alloy having both high strength and high ductility is desired.
- the above alloy requires a high N content of 0.05% by weight or more, but it is extremely difficult to add such a large amount of nitrogen from the viewpoint of melting, and it is also difficult to control the addition amount.
- An object of the present invention is to provide a titanium alloy having a higher strength and a higher ductility while reducing the content of nitrogen which is difficult to add to the conventional alloy.
- the above object also includes, as reinforcing elements, at least one of 0, N, and Fe, and at least one of Cr and Ni, with the balance being substantially the same. It consists of Ti, and the content of the above strengthening elements is related to the following (1) to (6):
- Ni Ni content (% by weight)
- the oxygen equivalent value Q is 0.34 to 0.68, the tensile strength is 700 to 900 MPa, and the elongation is 2 High strength and high ductility titanium alloys with 0% or more are provided.
- the oxygen equivalent value Q is 0.50 to 1.00, the tensile strength is at least 800 MPa, and the elongation is 15%.
- the high strength and high ductility titanium alloy described above is provided.
- the oxygen equivalent value Q is more than 0.68 to 1.00, and the tensile strength is more than 900 MPa.
- Certain high strength and high ductility titanium alloys are provided. Further, according to the third invention of the present application, there is provided a method for producing a high-strength, high-ductility titanium alloy according to the first invention or the second invention,
- At the time of melting the above titanium alloy at least one of carbon steel and stainless steel is charged and melted, so that Fe or Fe, Cr, Ni as the above-mentioned strengthening element can be obtained.
- a method for producing a high-strength, high-ductility titanium alloy, at least partly introduced from the above steel, is provided.
- a container containing Fe or a container containing at least one of Fe, Cr, and Ni is used.
- sponge titan containing at least one element selected from the group consisting of Fe and Fe, Cr, and Ni that have translocated and penetrated from the container is produced.
- the sponge titanium is used as at least a part of the feedstock of at least one of Fe as the reinforcing element or at least one of Fe, Cr, and Ni.
- the present invention provides a method for producing a high strength and high ductility titanium alloy using a steel.
- Nitrogen which is an interstitial solid solution element, penetrates the solid phase and strengthens solid solution, but it is difficult to control the amount required for strengthening during melting with VAR (vacuum arc melting), etc. It is not preferred that the amount is too large, since the ductility is reduced. Therefore, in the present invention, the addition and control of the content are facilitated by reducing the N content. Since the amount of N added may be small, N-based inclusions in the dissolved raw material will also be reduced to such an extent that VAR can eliminate it.
- the reinforcement by N is also reduced.
- the decrease in N content may be compensated for by the strengthening element 0 or Fe.
- an increase in 0 decreases ductility, and an increase in Fe similarly reduces ductility. The latter is shown in, for example, Test Nos. 9 and 10 in Table 3 of Japanese Patent Application Laid-Open No. H 1-225274.
- the present inventor conducted various experiments to improve ductility as well as strength. As a result, an increase in Fe reduced ductility when the N content was 0.055% by weight or more. Therefore, it has been found that when the N content is less than 0.055% by weight, particularly 0.05% by weight or less, the strength is improved without decreasing the ductility due to the increase of Fe. That is, by setting the N content to 0.05% by weight or less and the Fe content to 0.9% by weight or more, the strength and ductility are simultaneously improved.
- the reason is as follows. Since Fe is a phase stabilizing element, increasing the amount of Fe increases the amount of the phase, and the amount of the phase decreases accordingly. As a result, the phase stabilizing element N is concentrated in the reduced ⁇ phase. (4) If the content is more than 0.05% by weight, the Ti 2 N ordered phase is liable to be precipitated in the phase due to the concentration, and the ductility is reduced by the precipitate. By limiting the N content to 0.05% by weight, such a precipitated phase is hardly generated, and the strength can be improved by increasing the amount of Fe.
- a regular phase of T i 30 or T i 20 is generated.
- the amount of 0 required to generate these ordered phases is much larger than N and does not pose any problem within the scope of the present invention.
- a tensile strength of 700 MPa or more and an elongation of 15% or more are achieved. Simply increasing the amount of O and N to solid solution strengthening increases strength but decreases ductility.
- the present invention after reducing the N content to 0.05% by weight or less,?
- the oxygen equivalent value Q 0.34 to 1.0
- the oxygen equivalent value Q is defined by the following equation.
- Fe Fe content (% by weight)
- the tensile strength is 700 to 900 MPa and the elongation is 20% or more.
- a titanium alloy having high strength and particularly excellent ductility can be obtained.
- Q value must be 0.34 or more to secure tensile strength of 700 MPa or more
- the Q value must be 0.68 or less in order to secure 20% or more growth.
- the strength with a tensile strength of 850 MPa or more and an elongation of 15% or more is further improved.
- a titanium alloy with high and good ductility can be obtained.
- the Q value must be 0.50 or more to secure a tensile strength of 850 MPa or more, and the Q value must be 1.00 or less to secure an elongation of 15% or more. There must be.
- the tensile strength is more than 90 OMPa and the elongation is more than 15%.
- a titanium alloy with the highest strength and good ductility can be obtained.
- the Q value must be 0.68 or more to secure a tensile strength exceeding 900 MPa, and the Q value must be 1.00 or less to secure an elongation of 15% or more.
- ⁇ , N, and Fe are essential components as strengthening elements in the present invention, and are always present in the alloy of the present invention at a content within a range that satisfies the relationship of the Q value.
- the N content must be less than 0.05% by weight, and correspondingly the Fe content must be more than 0.9% by weight.
- the Fe content is set to 2.3% by weight or less.
- part of Fe can be replaced with at least one of Cr and Ni.
- Cr and Ni are phase-stabilizing elements like Fe, and contribute to high strength by refining crystal grains.
- Q is defined by the following equation in which the term [F e] is replaced by the term [F e] + [Cr] + [N i] in the above equation of Q.
- Fe Fe content (% by weight)
- Ni Ni content (weight
- the range of Q according to the present invention is 0.9 to 2.3.
- the Q value In order to simultaneously improve strength and ductility, the Q value must be 0.9 or more. If the Q value exceeds 2.3, solidification deflection becomes remarkable and the characteristics deteriorate. This is the same as when only Fe is added without adding.
- the contents of Cr and Ni are each set to 0.25% by weight or less, and the Fe content is set to 0.4% by weight or more, preferably 0.5% by weight or more. It is necessary to.
- the alloy of the present invention usually contains C, H, Mo, Mn, Si, S, and the like as impurities as in the case of conventional pure titanium or a titanium alloy, and the content of each is 0. It is less than 5% by weight.
- the titanium alloy of the present invention is usually placed in a melting furnace, and is subjected to arc melting (VAR melting) in a vacuum or an argon atmosphere.
- VAR melting arc melting
- carbon steel and / or stainless steel is supplied at the time of melting, and Fe and at least one of Cr and Ni are added to the titanium.
- These elements to be added to titanium may be added by the above method so that the total amount of Fe, Cr, and Ni is in the range of 0.9 to 2.3% by weight.
- You may add together with a step so that it may be in the said range.
- more inexpensive scraps or other debris can be used as an additional raw material.
- the raw materials to be added are not particularly limited.
- JIS-SS400, JIS-SUS430 (Fe-17 Cr), JIS-SUS304 (Fe-18 Cr--8Ni) ), JIS-SUS316 (Fe-18Cr-8Ni-2o) and the like, and stainless steel can be used.
- C, Mo, etc. are contained in these additional raw materials, the amounts are small compared to the contents of Fe, Cr, and Ni, and 0.05% by weight in the titanium alloy. % Of impurities.
- Fe, Cr, and Ni can be further added by other means as described below.
- a carbon steel or stainless steel container is used when producing sponge titanium by performing magnesium reduction by the Kroll method. From this container, Fe and at least one of Cr and Ni enter the sponge titan, and sponge titan containing these elements is formed near the wall and bottom of the container.
- the sponge titan thus produced is usually collected separately and used for other purposes.
- sponge titan is used as a part or all of the raw material for adding Fe, Cr and Ni. This makes it possible to reduce costs.
- the present invention can provide not only a titanium alloy having high strength and high ductility by adding a specified amount of 0, N, and Fe (and Cr, Ni).
- the use of inexpensive additive materials makes it possible to reduce the cost, which is extremely advantageous industrially.
- the alloy of the present invention does not contain A as an alloying element, the hot workability does not decrease as in the conventional alloy containing A £. It is advantageous in manufacturing.
- Figure 1 is a graph showing the relationship between Q value and tensile strength.
- Figure 2 is a graph showing the relationship between Q value and elongation.
- a high-strength and high-ductility titanium alloy having a tensile strength of 700 MPa to 900 Pa and an elongation of 20% or more was produced.
- “comparative example” means outside the scope of the first aspect, and does not necessarily mean outside the scope of the second aspect.
- Table 1 shows samples are samples containing the relevant component to a first aspect of the first invention, the addition of Fe was used pure metal or FeTi, Fe 2 0 3 (iron oxide).
- Table 2 Use samples shown in Table 2 is a sample containing the relevant component to a first aspect of the present second invention, Fe, Ni, addition of Cr is a pure metal or FeCr, FeNi, FeTi, the Fe 2 0 3 Was.
- Table 3 shows examples of bars and hot-rolled sheets according to the production method of the present invention.
- the embodiment is the first aspect of the second invention of the present application.
- test numbers 1 to 5, 7, 9, and 10 are rods
- 14 to 17 are hot and cold-rolled sheets
- the characteristics of the example are added.
- the “typical” indication in the same column means a typical example within the specified range.
- Test No. 6 is a comparative example of a rod whose elongation and fatigue strength were low and did not reach the specified range due to a high nitrogen content, and No. 8 had a Q (oxygen equivalent value [0] + 2.77 [N] + 0.1 [Fe]).
- This is a comparative example of a small number of rods.
- the lower limit of the specified range was slightly removed, and the tensile strength did not reach 700 MPa.
- Test No. 11 is a comparative example of a bar with a high Q due to a high oxygen content, and as apparent from the comparison with Test No. 10, the tensile strength was high and the elongation was slightly higher than the upper limit of the specified range of Q, as is clear.
- Test No. 12 is a comparative example of a bar with low Fe and tensile strength not reaching the specified range, and test No. 13 with high Fe resulted in solidification segregation, high tensile strength and remarkable elongation. This is a comparative example of a rod that is lowered.
- the titanium alloy within the range of the first aspect of the first invention has a tensile strength of 700 to 900 MPa and an elongation of 20% or more.
- Test Nos. 18 to 21, 23, and 24 are examples relating to the hot-rolled sheet and the cold-rolled sheet according to the first aspect of the second invention, and the remarks column indicates the characteristics of each example.
- the titanium alloy within the range of the first aspect of the second invention has a tensile strength of 700 to 900 MPa and an elongation of 20% or more.
- Test No. 29 is an example of a rod in which SUS430 scrap was used as the Cr source during VAR melting, and FeTi was further used as the Fe source, and the rod was adjusted to have the prescribed components.
- Fig. 30 shows an example of a hot-rolled sheet in which SUS304 scrap is used as the Ni and Cr sources, and FeTi is used as the Fe source, and the hot rolled sheet is adjusted to have the prescribed components. This is an example of a hot-rolled sheet using SUS316 scrap as the source and FeTi as the Fe source and adjusted to have the specified components.
- Fig. 32 is an example of a rod that uses SS400 scrap as a Fe source and is adjusted to have the specified composition.
- Test No. 33 is an example of a hot rolled sheet prepared by cutting out a sponge titanium material containing Fe, Ni, and Cr that invaded from a stainless steel container in the sponge titanium manufacturing process and using it to adjust it to the specified composition. It is.
- the content of each component is as shown in Table 3.
- the tensile strength of each sample is 700 MPa or more and the elongation is 20% or more, which is within the range of the first aspect of the first and second inventions, and shows excellent characteristics.
- a high-strength and high-ductility titanium alloy having a tensile strength of at least 800 MPa and an elongation of at least 15% was produced.
- “comparative example” means outside the scope of the second aspect, and does not necessarily mean outside the scope of the first aspect.
- Samples shown in Table 4 is a sample containing components related to the first invention, the addition of Fe was used pure metal or FeTi, Fe 2 0 3 (iron oxide).
- Samples shown in Table 5 is a sample containing components related to the present second invention, using Fe, Ni, addition of Cr is a pure metal or FeCr, FeNi, the FeTi. Fe 2 0 3.
- Table 6 shows examples of bars and hot-rolled sheets according to the production method of the present invention.
- test numbers 1, 2, 4, and 5 (the above are hot-rolled sheets) 8, 9, 12, 13, and 13 (the above are rods) and 15, 16 (the above are cold-rolled sheets) are the first invention second view. This is an example of the point, and the characteristics of each example are added in the remarks column.
- Test number 3 is an example of a hot rolled sheet with a low elongation that does not reach the specified range, and a sample No. 6 is Q (oxygen equivalent value [0] + 2.77 [N] + 0.1 [Fe]. )
- Q oxygen equivalent value [0] + 2.77 [N] + 0.1 [Fe].
- Test No. 7 is a comparative example of a hot-rolled sheet having a high Q due to an increased oxygen content. The tensile strength is high, and the elongation is extremely low.
- Test No. 10 is a comparative example of a bar having a high nitrogen and low elongation and fatigue strength
- Test No. 11 is a comparative example of a bar having a low Fe and low elongation and fatigue strength
- Test No. 14 was an example where the Fe was high.
- This is a comparative example of a rod in which solidification segregation occurs and elongation and fatigue strength are low.
- the titanium alloy within the scope of the second aspect of the first invention has a tensile strength of 850 MPa or more and an elongation of 15% or more.
- Test Nos. 17 to 19, 21, 22, and 24 are examples of the hot-rolled sheet and the cold-rolled sheet according to the second aspect of the second invention, and the remarks column indicates the characteristics of each example.
- Test No. 20 is a comparative example of a hot-rolled sheet in which the total content of Fe + Ni + Cr is small, and thus the elongation does not reach the specified range, and No. 23 has a high content of Fe + Ni + Cr, Comparative example of a cold rolled sheet whose elongation is significantly reduced due to folding is shown in Fig. 25, and a comparative example of a cold rolled sheet whose elongation is insufficient because of excessive Ni content.
- Fig. 26 is an example of a cold rolled sheet with insufficient elongation due to excessive addition of Cr.
- the titanium alloy within the scope of the second aspect of the second invention has a tensile strength of 850 MPa or more and an elongation of 15% or more.
- Test No. 6 is an example of a rod prepared by using SUS430 waste as the Fe and Cr sources during VAR melting, using FeTi as the Fe source, and adjusting the composition to a specified component. is there.
- Fig. 28 shows an example of a hot-rolled sheet prepared by using SUS304 scrap as the Fe, Ni, and Cr sources and further using FeTi as the Fe source and adjusting them to have the prescribed components. This is an example of a hot-rolled sheet that uses SUS316 scrap as the Fe, Ni, and Cr sources, and FeTi as the Fe source, and is adjusted to have predetermined components.
- Fig. 30 shows an example of a rod that uses SUS400 scrap as an Fe source and is adjusted to have the specified composition.
- Test No. 31 is a hot-rolled sheet prepared by cutting out a sponge-titanium material containing Fe, Ni, and Cr that has invaded from a stainless steel container during the titanium sponge manufacturing process, and adjusting it to a specified component. This is an example.
- the content of each component is as shown in Table 6.
- the tensile strength of each sample is 850 MPa or more and the elongation is 15% or more, which is within the range of the second aspect of the first and second inventions, and each shows excellent characteristics.
- a high-strength, high-ductility titanium alloy having a tensile strength of at least 800 MPa and an elongation of at least 15% was produced.
- “comparative example” means outside the scope of the second viewpoint, and does not necessarily mean outside the scope of the first viewpoint.
- a sample containing 1.5% by weight of Fe (Example of the present invention) and 0.7% by weight (conventional example) and having a Q value shown in Table 7 was formed by melting a 1 ⁇ 0 cylindrical solid lump with a plasma arc, and then forming the lump. 1000 ° heated to C and the 80mm thickness of the slab in forging, then, 850 e C to the hot-rolled sheet of 4 mm thick with heating after hot rolling, in the et, annealed for 700 ° CX 1 h Created. The tensile tests described in Example 1 were performed on these samples, and the results were plotted and shown in FIGS.
- N is reduced as a strengthening element.
- the content of Fe, and the strengthening elements 0, N, and Fe, or the contents of Cr and Ni, which substitute for part of Fe, are further reduced to the oxygen equivalent value Q.
- the present invention provides a titanium alloy having high strength and high ductility by adjusting the temperature.
- the above-mentioned strengthening element can be supplied from an inexpensive additive material, so that the cost can be reduced, which is extremely industrially advantageous.
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Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/750,627 US6063211A (en) | 1995-04-21 | 1996-04-19 | High strength, high ductility titanium-alloy and process for producing the same |
JP53162796A JP3426605B2 (ja) | 1995-04-21 | 1996-04-19 | 高強度・高延性チタン合金およびその製造方法 |
DE69610544T DE69610544T2 (de) | 1995-04-21 | 1996-04-19 | Hochfeste, hochduktile titanlegierung und verfahren zu deren herstellung |
EP96910213A EP0767245B1 (en) | 1995-04-21 | 1996-04-19 | High-strength, high-ductility titanium alloy and process for preparing the same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9730295 | 1995-04-21 | ||
JP7/97301 | 1995-04-21 | ||
JP9730195 | 1995-04-21 | ||
JP7/97302 | 1995-04-21 |
Publications (1)
Publication Number | Publication Date |
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WO1996033292A1 true WO1996033292A1 (fr) | 1996-10-24 |
Family
ID=26438486
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP1996/001078 WO1996033292A1 (fr) | 1995-04-21 | 1996-04-19 | Alliage de titane a resistance et ductilite elevees et son procede de preparation |
Country Status (6)
Country | Link |
---|---|
US (1) | US6063211A (ja) |
EP (1) | EP0767245B1 (ja) |
JP (1) | JP3426605B2 (ja) |
DE (1) | DE69610544T2 (ja) |
RU (1) | RU2117065C1 (ja) |
WO (1) | WO1996033292A1 (ja) |
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JP2008208413A (ja) * | 2007-02-26 | 2008-09-11 | Nippon Steel Corp | 高強度チタン合金製冷間鍛造用素材 |
JP2009179822A (ja) * | 2008-01-29 | 2009-08-13 | Kobe Steel Ltd | 高強度かつ成形性に優れたチタン合金板とその製造方法 |
WO2012023620A1 (ja) * | 2010-08-20 | 2012-02-23 | 日本発條株式会社 | 高強度チタン合金部材およびその製造方法 |
WO2012169304A1 (ja) * | 2011-06-09 | 2012-12-13 | 日本発條株式会社 | チタン合金部材およびその製造方法 |
WO2012169305A1 (ja) * | 2011-06-07 | 2012-12-13 | 日本発條株式会社 | チタン合金部材およびその製造方法 |
WO2015156356A1 (ja) * | 2014-04-10 | 2015-10-15 | 新日鐵住金株式会社 | 高強度・高ヤング率を有するα+β型チタン合金冷延焼鈍板およびその製造方法 |
JPWO2015156358A1 (ja) * | 2014-04-10 | 2017-04-13 | 新日鐵住金株式会社 | 管長手方向の強度、剛性に優れたα+β型チタン合金溶接管およびその製造方法 |
KR102434519B1 (ko) * | 2021-12-29 | 2022-08-22 | 한국재료연구원 | 페로크롬을 이용한 고강도 타이타늄 합금 제조 방법 및 고강도 타이타늄 합금 |
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JP3742558B2 (ja) * | 2000-12-19 | 2006-02-08 | 新日本製鐵株式会社 | 高延性で板面内材質異方性の小さい一方向圧延チタン板およびその製造方法 |
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JP4116983B2 (ja) * | 2004-03-31 | 2008-07-09 | 本田技研工業株式会社 | チタン製バルブスプリングリテーナ |
JP2006274392A (ja) * | 2005-03-30 | 2006-10-12 | Honda Motor Co Ltd | チタン合金製ボルト及び引張り強さが少なくとも800MPaであるチタン合金製ボルトの製造方法 |
JP4666271B2 (ja) * | 2009-02-13 | 2011-04-06 | 住友金属工業株式会社 | チタン板 |
KR101582271B1 (ko) | 2011-02-24 | 2016-01-05 | 신닛테츠스미킨 카부시키카이샤 | 냉연성 및 냉간에서의 취급성이 우수한 α+β형 티타늄 합금판과 그 제조 방법 |
RU2583556C2 (ru) * | 2014-09-16 | 2016-05-10 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Экономнолегированный титановый сплав |
WO2019198147A1 (ja) * | 2018-04-10 | 2019-10-17 | 日本製鉄株式会社 | チタン合金およびその製造方法 |
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1996
- 1996-04-19 US US08/750,627 patent/US6063211A/en not_active Expired - Lifetime
- 1996-04-19 EP EP96910213A patent/EP0767245B1/en not_active Expired - Lifetime
- 1996-04-19 RU RU97100791A patent/RU2117065C1/ru active
- 1996-04-19 DE DE69610544T patent/DE69610544T2/de not_active Expired - Lifetime
- 1996-04-19 WO PCT/JP1996/001078 patent/WO1996033292A1/ja active IP Right Grant
- 1996-04-19 JP JP53162796A patent/JP3426605B2/ja not_active Expired - Lifetime
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Cited By (17)
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JP2004269982A (ja) * | 2003-03-10 | 2004-09-30 | Daido Steel Co Ltd | 高強度低合金チタン合金とその製造方法 |
JP2008208413A (ja) * | 2007-02-26 | 2008-09-11 | Nippon Steel Corp | 高強度チタン合金製冷間鍛造用素材 |
JP2009179822A (ja) * | 2008-01-29 | 2009-08-13 | Kobe Steel Ltd | 高強度かつ成形性に優れたチタン合金板とその製造方法 |
US10151019B2 (en) | 2010-08-20 | 2018-12-11 | Nhk Spring Co., Ltd. | High-strength titanium alloy member and production method for same |
WO2012023620A1 (ja) * | 2010-08-20 | 2012-02-23 | 日本発條株式会社 | 高強度チタン合金部材およびその製造方法 |
WO2012169305A1 (ja) * | 2011-06-07 | 2012-12-13 | 日本発條株式会社 | チタン合金部材およびその製造方法 |
JP2012251234A (ja) * | 2011-06-07 | 2012-12-20 | Nhk Spring Co Ltd | チタン合金部材およびその製造方法 |
US10350681B2 (en) | 2011-06-07 | 2019-07-16 | Nhk Spring Co., Ltd. | Titanium alloy member and production method therefor |
WO2012169304A1 (ja) * | 2011-06-09 | 2012-12-13 | 日本発條株式会社 | チタン合金部材およびその製造方法 |
US9920399B2 (en) | 2011-06-09 | 2018-03-20 | Nhk Spring Co., Ltd. | Titanium alloy member and production method therefor |
JP2012255192A (ja) * | 2011-06-09 | 2012-12-27 | Nhk Spring Co Ltd | チタン合金部材およびその製造方法 |
JPWO2015156358A1 (ja) * | 2014-04-10 | 2017-04-13 | 新日鐵住金株式会社 | 管長手方向の強度、剛性に優れたα+β型チタン合金溶接管およびその製造方法 |
JPWO2015156356A1 (ja) * | 2014-04-10 | 2017-04-13 | 新日鐵住金株式会社 | 高強度・高ヤング率を有するα+β型チタン合金冷延焼鈍板およびその製造方法 |
WO2015156356A1 (ja) * | 2014-04-10 | 2015-10-15 | 新日鐵住金株式会社 | 高強度・高ヤング率を有するα+β型チタン合金冷延焼鈍板およびその製造方法 |
US10351941B2 (en) | 2014-04-10 | 2019-07-16 | Nippon Steel Corporation | α+β titanium alloy cold-rolled and annealed sheet having high strength and high young's modulus and method for producing the same |
KR102434519B1 (ko) * | 2021-12-29 | 2022-08-22 | 한국재료연구원 | 페로크롬을 이용한 고강도 타이타늄 합금 제조 방법 및 고강도 타이타늄 합금 |
WO2023128356A1 (ko) * | 2021-12-29 | 2023-07-06 | 한국재료연구원 | 페로크롬을 이용한 고강도 타이타늄 합금 제조 방법 및 고강도 타이타늄 합금 |
Also Published As
Publication number | Publication date |
---|---|
DE69610544T2 (de) | 2001-05-31 |
RU2117065C1 (ru) | 1998-08-10 |
JP3426605B2 (ja) | 2003-07-14 |
DE69610544D1 (de) | 2000-11-09 |
EP0767245A1 (en) | 1997-04-09 |
EP0767245B1 (en) | 2000-10-04 |
EP0767245A4 (en) | 1998-09-09 |
US6063211A (en) | 2000-05-16 |
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