JP2018505964A - チタン合金 - Google Patents
チタン合金 Download PDFInfo
- Publication number
- JP2018505964A JP2018505964A JP2017536249A JP2017536249A JP2018505964A JP 2018505964 A JP2018505964 A JP 2018505964A JP 2017536249 A JP2017536249 A JP 2017536249A JP 2017536249 A JP2017536249 A JP 2017536249A JP 2018505964 A JP2018505964 A JP 2018505964A
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- Prior art keywords
- alpha
- titanium alloy
- beta titanium
- cold
- beta
- 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.)
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- 229910001069 Ti alloy Inorganic materials 0.000 title description 21
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 267
- 239000000956 alloy Substances 0.000 claims abstract description 267
- 229910021535 alpha-beta titanium Inorganic materials 0.000 claims abstract description 138
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 84
- 239000010941 cobalt Substances 0.000 claims abstract description 84
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 84
- 238000000034 method Methods 0.000 claims abstract description 60
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 49
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000005482 strain hardening Methods 0.000 claims abstract description 48
- 230000009467 reduction Effects 0.000 claims abstract description 31
- 239000010936 titanium Substances 0.000 claims abstract description 29
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 27
- 239000011733 molybdenum Substances 0.000 claims abstract description 27
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims description 65
- 239000002184 metal Substances 0.000 claims description 65
- 238000005097 cold rolling Methods 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 238000005096 rolling process Methods 0.000 claims description 21
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 17
- 238000000465 moulding Methods 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 15
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 12
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- 238000000748 compression moulding Methods 0.000 claims description 7
- 229910052763 palladium Inorganic materials 0.000 claims description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 238000005242 forging Methods 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000009987 spinning Methods 0.000 claims description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 5
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052741 iridium Inorganic materials 0.000 claims description 5
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229910052709 silver Inorganic materials 0.000 claims description 5
- 239000004332 silver Substances 0.000 claims description 5
- 238000007514 turning Methods 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- 229910052691 Erbium Inorganic materials 0.000 claims description 4
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 4
- 229910052689 Holmium Inorganic materials 0.000 claims description 4
- 229910052779 Neodymium Inorganic materials 0.000 claims description 4
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 4
- 229910052772 Samarium Inorganic materials 0.000 claims description 4
- 229910052775 Thulium Inorganic materials 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims description 4
- 229910052790 beryllium Inorganic materials 0.000 claims description 4
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000007723 die pressing method Methods 0.000 claims description 4
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 4
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 4
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 4
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 claims description 4
- 229910052706 scandium Inorganic materials 0.000 claims description 4
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052726 zirconium Inorganic materials 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 3
- 238000010068 moulding (rubber) Methods 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 2
- 230000000670 limiting effect Effects 0.000 description 64
- 229910000883 Ti6Al4V Inorganic materials 0.000 description 29
- 239000000654 additive Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 17
- 239000000047 product Substances 0.000 description 15
- 238000005275 alloying Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 11
- 230000000087 stabilizing effect Effects 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 238000000137 annealing Methods 0.000 description 9
- 239000011651 chromium Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 6
- 229910001040 Beta-titanium Inorganic materials 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 238000005098 hot rolling Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 230000035882 stress Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007734 materials engineering Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 229910001092 metal group alloy Inorganic materials 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 208000009205 Tinnitus Diseases 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001093 Zr alloy Inorganic materials 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000012993 chemical processing Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000010622 cold drawing Methods 0.000 description 1
- 238000000641 cold extrusion Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
Landscapes
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Powder Metallurgy (AREA)
- Forging (AREA)
- Extrusion Of Metal (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
[Al]eq=[Al]+1/3[Sn]+1/6[Zr+Hf]+10[O+2N+C]+[Ga]+[Ge]。
[Mo]eq=[Mo]+2/3[V]+3[Mn+Fe+Ni+Cr+Cu+Be]+1/3[Ta+Nb+W]。
[Mo]eq=[Mo]+2/3[V]+3[Mn+Fe+Ni+Cr+Cu+Be]+1/3[Ta+Nb+W]。
[Al]eq=[Al]+1/3[Sn]+1/6[Zr+Hf]+10[O+2N+C]+[Ga]+[Ge]。
[Mo]eq=[Mo]+2/3[V]+3[Mn+Fe+Ni+Cr+Cu+Be]+1/3[Ta+Nb+W]。
[Al]eq=[Al]+1/3[Sn]+1/6[Zr+Hf]+10[O+2N+C]+[Ga]+[Ge]。
[Mo]eq=[Mo]+2/3[V]+3[Mn+Fe+Ni+Cr+Cu+Be]+1/3[Ta+Nb+W]。
[Mo]eq=[Mo]+2/3[V]+3[Mn+Fe+Ni+Cr+Cu+Be]+1/3[Ta+Nb+W]。
純粋)チタンは、他のCPグレードよりも成形性が低いことが知られている。グレード4 CP合金はグレード1、2、または3CPよりも高い強度を有するものの、これは本開示の合金の実施形態よりも低い強度を示す。
限定的な冷間成形性が見込まれる組成を有する2つの合金を製造した。これらの合金の重量パーセント単位での組成及びこれらの観察された圧延性は表1に示されている。
本開示の範囲内の第2の合金(ヒート5)の機械的性能を、Ti−4Al−2.5V合金の小さなクーポンと比較した。表2には、ヒート5の組成、及び比較の目的のTi−4Al−2.5Vのヒート(Coなし)の組成が記載されている。表2中の組成は重量パーセントで示されている。
冷間圧延能力または圧下延性限界を、合金組成に基づいて比較した。合金ヒート1〜4のボタンを、実施例2で使用したTi−4Al−2.5V合金と同じ組成を有するボタンと比較した。ボタンは、実施例1のコバルト含有合金に使用した方法で溶融、熱間圧延、及びその後冷間圧延することによって作製した。ボタンを、大きな割れが観察されるまで、すなわち冷間加工圧下延性限界に到達するまで冷間圧延した。表3に、本発明と比較例のボタンの組成(残部はチタン及び不可避不純物)が重量パーセント単位で記載されており、また冷間加工圧下延性限界が熱間圧延したボタンの%圧下率で表わされている。
Claims (37)
- 重量パーセント単位で:
2.0〜10.0の範囲のアルミニウム当量;
0〜20.0の範囲のモリブデン当量;
0.3〜5.0のコバルト;
チタン;
及び不可避不純物;
を含有するアルファ−ベータチタン合金。 - 前記モリブデン当量が2.0〜20.0の範囲である、請求項1に記載のアルファ−ベータチタン合金。
- 前記アルファ−ベータチタン合金が少なくとも25%の冷間加工圧下延性限界を示す、請求項1に記載のアルファ−ベータチタン合金。
- 前記アルファ−ベータチタン合金が少なくとも35%の冷間加工圧下延性限界を示す、請求項1に記載のアルファ−ベータチタン合金。
- 前記アルファ−ベータチタン合金が、少なくとも130KSI(896.3MPa)の降伏強度と、少なくとも10%の伸び率を示す、請求項1に記載のアルファ−ベータチタン合金。
- セリウム、プラセオジム、ネオジム、サマリウム、ガドリニウム、ホルミウム、エルビウム、ツリウム、イットリウム、スカンジウム、ベリリウム、及びホウ素のうちの1種以上を、合計で0より多く最大0.3重量%更に含有する、請求項1に記載のアルファ−ベータチタン合金。
- 前記モリブデン当量が0〜10の範囲である、請求項6に記載のアルファ−ベータチタン合金。
- 金、銀、パラジウム、白金、ニッケル、及びイリジウムのうちの1種以上を、合計で0より多く最大0.5重量%更に含有する、請求項1に記載のアルファ−ベータチタン合金。
- 前記アルミニウム当量が1.0〜6.0の範囲であり前記モリブデン当量が0〜10の範囲である、請求項8に記載のアルファ−ベータチタン合金。
- 金、銀、パラジウム、白金、ニッケル、及びイリジウムのうちの1種以上を、合計で0より多く最大0.5重量%更に含有する、請求項6に記載のアルファ−ベータチタン合金。
- 0より多く6までのスズ;
0より多く0.6までのケイ素;及び
0より多く10までのジルコニウム;
のうちの1種以上を更に含有する、請求項1に記載のアルファ−ベータチタン合金。 - 重量パーセント単位で:
2.0〜7.0のアルミニウム;
2.0〜5.0の範囲のモリブデン当量;
0.3〜4.0のコバルト;
最大0.5の酸素;
最大0.25の窒素;
最大0.3の炭素;
最大0.4の不可避不純物;及び
チタン;
を含有するアルファ−ベータチタン合金。 - 0より多く6までのスズ;
0より多く0.6までのケイ素;
0より多く10までのジルコニウム;
0より多く0.3までのパラジウム;及び
0より多く0.5までのホウ素;
のうちの1種以上を更に含有する、請求項12に記載のアルファ−ベータチタン合金。 - セリウム、プラセオジム、ネオジム、サマリウム、ガドリニウム、ホルミウム、エルビウム、ツリウム、イットリウム、スカンジウム、ベリリウム、及びホウ素のうちの1種以上を、合計で0より多く最大0.3重量%更に含有する、請求項12に記載のアルファ−ベータチタン合金。
- 金、銀、パラジウム、白金、ニッケル、及びイリジウムのうちの1種以上を、合計で0より多く最大0.5重量%更に含有する、請求項12に記載のアルファ−ベータチタン合金。
- 前記アルファ−ベータチタン合金が少なくとも25%の冷間加工圧下延性限界を示す、請求項12に記載のアルファ−ベータチタン合金。
- 前記アルファ−ベータチタン合金が少なくとも35%の冷間加工圧下延性限界を示す、請求項12に記載のアルファ−ベータチタン合金。
- 前記アルファ−ベータチタン合金が、少なくとも130KSI(896.3MPa)の降伏強度と、少なくとも10%の伸び率を示す、請求項12に記載のアルファ−ベータチタン合金。
- 少なくとも25%の断面減少率まで金属成形品を冷間加工することを含む、アルファ−ベータチタン合金を含む金属成形品からの物品の成形方法であって、
前記金属成形品が請求項1のアルファ−ベータチタン合金を含み;
前記金属成形品が冷間加工後に大きな割れを示さない;
前記物品の成形方法。 - 前記金属成形品を冷間加工することが、前記金属成形品を少なくとも35%の圧下率まで冷間加工することを含む、請求項19に記載の方法。
- 前記金属成形品を冷間加工することが、圧延、鍛造、押出、ピルガー圧延、揺動、引抜き、フローターニング、液体圧縮成形、気体圧縮成形、ハイドロフォーミング、バルジ成形、ロール成形、スタンピング、ファインブランキング、ダイ加圧成形、深絞り、コイニング、スピニング、スゥエージング、衝撃押出、爆発成形、ゴム成形、逆押出、穴抜き、引張成形、プレス曲げ、電磁成形、及び冷間圧造のうちの1つ以上を含む、請求項19に記載の方法。
- 前記金属成形品を冷間加工することが冷間圧延を含む、請求項19に記載の方法。
- 前記金属成形品を冷間加工することが前記金属成形品を約1250°F(676.7℃)未満の温度で加工すること含む、請求項19に記載の方法。
- 前記金属成形品を冷間加工することが前記金属成形品を約575°F(300℃)以下の温度で加工すること含む、請求項19に記載の方法。
- 前記金属成形品を冷間加工することが前記金属成形品を約392°F(200℃)未満の温度で加工すること含む、請求項19に記載の方法。
- 前記金属成形品を冷間加工することが前記金属成形品を−100℃〜200℃の範囲の温度で加工すること含む、請求項19に記載の方法。
- 前記金属成形品が、インゴット、ビレット、ブルーム、ビーム、バー、チューブ、スラブ、ロッド、ワイヤ、プレート、シート、押出品、及び鋳造品から選択される、請求項19に記載の方法。
- 前記金属成形品の冷間加工の前に、前記金属成形品を熱間加工することを更に含む、請求項19に記載の方法。
- 重量パーセント単位で:
2.0〜7.0のアルミニウム;
2.0〜5.0の範囲のモリブデン当量;
0.3〜4.0のコバルト;
最大0.5の酸素;
最大0.25の窒素;
最大0.3の炭素;
最大0.4の不可避不純物;及び
チタン;
を含むアルファ−ベータチタン合金を準備することと、
少なくとも25%の圧下率まで前記アルファ−ベータチタン合金を冷間加工することであって前記アルファ−ベータチタン合金が冷間加工後に大きな割れを示さないことと、
を含む、アルファ−ベータチタン合金からの物品の成形方法。 - 前記アルファ−ベータチタン合金を冷間加工することが、前記アルファ−ベータチタン合金を少なくとも35%の圧下率まで冷間加工することを含む、請求項29に記載の方法。
- 前記アルファ−ベータチタン合金を冷間加工することが、圧延、鍛造、押出、ピルガー圧延、揺動、引抜き、フローターニング、液体圧縮成形、気体圧縮成形、ハイドロフォーミング、バルジ成形、ロール成形、スタンピング、ファインブランキング、ダイ加圧成形、深絞り、コイニング、スピニング、スゥエージング、衝撃押出、爆発成形、ゴム成形、逆押出、穴抜き、引張成形、プレス曲げ、電磁成形、及び冷間圧造のうちの1つ以上を含む、請求項29に記載の方法。
- 前記アルファ−ベータチタン合金を冷間加工することが前記アルファ−ベータチタン合金を冷間圧延することを含む、請求項29に記載の方法。
- 前記アルファ−ベータチタン合金を冷間加工することが前記アルファ−ベータチタン合金を約1250°F(676.7℃)未満の温度で加工すること含む、請求項29に記載の方法。
- 前記アルファ−ベータチタン合金を冷間加工することが前記アルファ−ベータチタン合金態を約392°F(200℃)未満の温度で加工すること含む、請求項29に記載の方法。
- 前記アルファ−ベータチタン合金を冷間加工することが前記アルファ−ベータチタン合金を−100℃〜200℃の範囲の温度で加工すること含む、請求項29に記載の方法。
- 前記アルファ−ベータチタン合金が、インゴット、ビレット、ブルーム、ビーム、スラブ、バー、チューブ、ロッド、ワイヤ、プレート、シート、押出品、及び鋳造品から選択される形態である、請求項29に記載の方法。
- 前記アルファ−ベータチタン合金の冷間加工の前に、前記アルファ−ベータチタン合金を熱間加工することを更に含む、請求項29に記載の方法。
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US11851734B2 (en) | 2023-12-26 |
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CN112813304A (zh) | 2021-05-18 |
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JP7021176B2 (ja) | 2022-02-16 |
US20160201165A1 (en) | 2016-07-14 |
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US20200347483A1 (en) | 2020-11-05 |
JP6632629B2 (ja) | 2020-01-22 |
CN112813304B (zh) | 2023-01-10 |
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US10094003B2 (en) | 2018-10-09 |
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