JP2020510139A - 高窒素、多主要元素、高エントロピーの耐食性合金 - Google Patents
高窒素、多主要元素、高エントロピーの耐食性合金 Download PDFInfo
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 114
- 239000000956 alloy Substances 0.000 title claims abstract description 114
- 238000005260 corrosion Methods 0.000 title claims abstract description 45
- 230000007797 corrosion Effects 0.000 title claims abstract description 45
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title description 25
- 229910052757 nitrogen Inorganic materials 0.000 title description 14
- 239000000203 mixture Substances 0.000 claims abstract description 34
- 239000006104 solid solution Substances 0.000 claims abstract description 23
- 229910052721 tungsten Inorganic materials 0.000 claims abstract description 14
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 13
- 239000012535 impurity Substances 0.000 claims abstract description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 15
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 229910052748 manganese Inorganic materials 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims 4
- 230000002411 adverse Effects 0.000 abstract description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 29
- 238000012360 testing method Methods 0.000 description 16
- 239000011651 chromium Substances 0.000 description 15
- 229910052759 nickel Inorganic materials 0.000 description 14
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 229910052804 chromium Inorganic materials 0.000 description 11
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 10
- 229910017052 cobalt Inorganic materials 0.000 description 10
- 239000010941 cobalt Substances 0.000 description 10
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 10
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 8
- 239000003570 air Substances 0.000 description 7
- 239000011733 molybdenum Substances 0.000 description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 6
- 238000009835 boiling Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 239000011780 sodium chloride Substances 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- 238000007654 immersion Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- 238000010998 test method Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000005482 strain hardening Methods 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 229910000905 alloy phase Inorganic materials 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- XEGGRYVFLWGFHI-UHFFFAOYSA-N bendiocarb Chemical compound CNC(=O)OC1=CC=CC2=C1OC(C)(C)O2 XEGGRYVFLWGFHI-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910001325 element alloy Inorganic materials 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C2200/00—Crystalline structure
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- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Steel (AREA)
- Powder Metallurgy (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
−22≦ΔHmix≦7kJ/mol
δ<8.5%
ΔSmix≧11J/(K mol)
Co 約13〜約28
Ni 約13〜約28
Fe+Mn 約13〜約28
Cr 約13〜約37
Mo 約8〜約28
N 約0.10〜約1.00
合金は、同じまたは同様の用途を目的とした耐食性合金に見られる通常の不純物を含む。また、Moの一部または全てをWおよびVの一方または両方で置換可能である。合金は、実質的に全てFCC相である固溶体を提供するが、合金によって提供される耐食性と機械的特性に悪影響を及ぼさない少量の二次相を含んでもよい。
−6kJ/mol≦ΔHmix≦0kJ/mol、
2.00%<δ<4.5%、
ΔSmix>12J/K mol、および
価電子濃度が約7.80よりも大きい。
−6kJ/mol≦ΔHmix≦0kJ/mol、
2.00%<δ<4.5%、
ΔSmix>12J/K mol、および
価電子濃度(VEC)は、約7.80を超える。ΔSmixは、主に合金の主要元素の数とそれらの濃度に影響される。好ましくは、最小で5つの等原子元素がΔSmixを提供し、その結果、安定化された合金微細構造が得られる。合金の5元素の実施形態では、ΔSmixは、約13〜13.5J/K mol以下であると予想される。しかしながら、銅含有の実施形態では、ΔSmixは、13〜13.5J/K molよりも大きいと予想される。ΔHmixは、構成元素の化学親和力によって決定され、エントロピーが合金の安定性を管理できるように、実行可能な限りゼロに近いことが好ましい。パラメータδは、構成元素の原子サイズの違いに関連している。本合金では、モリブデンが最大原子であり、δの値に最も影響を与える原子である。
Claims (12)
- 固溶体相を有する、多主要元素、高エントロピー、耐食性合金であって、
前記合金は、重量パーセントで、
Co 約13〜約28
Ni 約13〜約35
Fe+Mn 約13〜約28
Cr 約13〜約37
Mo 約8〜約28
N 約0.10〜約1.00
および通常の不純物を含み、
前記Moの一部または全てをWおよびVの一方または両方で置換可能である、多主要元素、高エントロピー、耐食性合金。 - 前記固溶体相は、本質的に面心立方晶の結晶構造からなる、請求項1に記載の多主要元素、耐食性合金。
- 前記合金は、以下の特徴を有する、請求項1に記載の多主要元素、耐食性合金。
−6kJ/mol<ΔHmix<0kJ/mol、
ΔSmix>12J/(K mol)、
2.00%<δ<4.5%、および
前記合金の価電子濃度が約7.80よりも大きい。 - 単相固溶体を形成する高エントロピー、耐食性合金であって、
前記合金は、式(Fe,Mn)aCobNicCrx(Mo,W,V)yを有し、
a、b、c、xおよびyは、原子パーセントで以下の通りであり、
12≦a≦35、
12≦b≦35、
12≦c≦40、
12≦x≦40、
4≦y≦20
WおよびVは、等原子基準でMoの一部または全部を置換可能であり、
前記合金は、少なくとも約0.10%から溶解限界までのNを含む、高エントロピー、耐食性合金。 - 前記固溶体相は、本質的に面心立方晶の結晶構造からなる、請求項4に記載の高エントロピー、耐食性合金。
- 前記合金は、以下の特徴を有する、請求項4に記載の高エントロピー、耐食性合金。
−6kJ/mol≦ΔHmix≦0kJ/mol、
ΔSmix>12J/(K mol)、
2.00%<δ<4.5%、および
合金元素の価電子濃度が約7.80よりも大きい。 - 固溶体相を有する高エントロピー、耐食性合金であって、
前記合金は、重量パーセントで、
Co 約13〜約28
Ni 約13〜約35
Cu 約13〜約28
Fe+Mn 約13〜約28
Cr 約13〜約37
Mo 約8〜約28
N 約0.10〜約1.00
および通常の不純物を含み、
前記Moの一部または全てをWおよびVの一方または両方で置換可能である、高エントロピー、耐食性合金。 - 前記固溶体相は、本質的に面心立方晶の結晶構造からなる、請求項7に記載の高エントロピー、耐食性合金。
- 前記合金は、以下の特徴を有する、請求項7に記載の高エントロピー、耐食性合金。
−6kJ/mol<ΔHmix<0kJ/mol、
ΔSmix>12J/(K mol)、
2.00%<δ<4.5%、および
前記合金の価電子濃度が約7.80よりも大きい。 - 単相固溶体を形成する高エントロピー、耐食性合金であって、
前記合金は、式(Fe,Mn)aCobNicCudCrx(Mo,W,V)yを有し、
a、b、c、xおよびyは、原子パーセントで以下の通りであり、
10≦a≦30、
10≦b≦30、
10≦c≦30、
10≦d≦30
10≦x≦30、
4≦y≦18
WおよびVは、等原子基準でMoの一部または全部を置換可能であり、
前記合金は、少なくとも約0.10%から溶解限界までのNを含む、高エントロピー、耐食性合金。 - 前記固溶体相は、本質的に面心立方晶の結晶構造からなる、請求項10に記載の高エントロピー、耐食性合金。
- 前記合金は、以下の特徴を有する、請求項10に記載の高エントロピー、耐食性合金。
−6kJ/mol≦ΔHmix≦0kJ/mol、
ΔSmix>12J/(K mol)、
2.00%<δ<4.5%、および
合金元素の価電子濃度が約7.80よりも大きい。
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US201762468600P | 2017-03-08 | 2017-03-08 | |
US62/468,600 | 2017-03-08 | ||
PCT/US2018/021461 WO2018165369A1 (en) | 2017-03-08 | 2018-03-08 | High nitrogen, multi-principal element, high entropy corrosion resistant alloy |
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US (1) | US20180340245A1 (ja) |
EP (1) | EP3592877A1 (ja) |
JP (1) | JP2020510139A (ja) |
KR (1) | KR20190127808A (ja) |
CN (1) | CN110651057A (ja) |
BR (1) | BR112019017951A2 (ja) |
CA (1) | CA3055297C (ja) |
IL (1) | IL268904A (ja) |
MX (1) | MX2019010538A (ja) |
RU (1) | RU2731924C1 (ja) |
WO (1) | WO2018165369A1 (ja) |
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- 2018-03-08 CN CN201880016595.6A patent/CN110651057A/zh active Pending
- 2018-03-08 US US15/915,145 patent/US20180340245A1/en not_active Abandoned
- 2018-03-08 KR KR1020197029679A patent/KR20190127808A/ko not_active Application Discontinuation
- 2018-03-08 JP JP2019548668A patent/JP2020510139A/ja active Pending
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BR112019017951A2 (pt) | 2020-05-19 |
CN110651057A (zh) | 2020-01-03 |
WO2018165369A1 (en) | 2018-09-13 |
CA3055297C (en) | 2021-04-13 |
EP3592877A1 (en) | 2020-01-15 |
MX2019010538A (es) | 2019-10-15 |
US20180340245A1 (en) | 2018-11-29 |
IL268904A (en) | 2019-10-31 |
KR20190127808A (ko) | 2019-11-13 |
RU2731924C1 (ru) | 2020-09-09 |
CA3055297A1 (en) | 2018-09-13 |
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