JP7464516B2 - 鋼組成物及びそのステンレス鋼の固溶窒化 - Google Patents
鋼組成物及びそのステンレス鋼の固溶窒化 Download PDFInfo
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- 238000005121 nitriding Methods 0.000 title description 70
- 229910001220 stainless steel Inorganic materials 0.000 title description 16
- 239000010935 stainless steel Substances 0.000 title description 10
- 239000000203 mixture Substances 0.000 title description 7
- 229910000831 Steel Inorganic materials 0.000 title description 6
- 239000010959 steel Substances 0.000 title description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 422
- 239000000956 alloy Substances 0.000 claims description 422
- 229910052759 nickel Inorganic materials 0.000 claims description 35
- 229910052804 chromium Inorganic materials 0.000 claims description 28
- 229910052750 molybdenum Inorganic materials 0.000 claims description 24
- 239000011573 trace mineral Substances 0.000 claims description 18
- 235000013619 trace mineral Nutrition 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 14
- 239000012535 impurity Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 86
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 66
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 64
- 239000011651 chromium Substances 0.000 description 36
- 238000000034 method Methods 0.000 description 36
- 229910052742 iron Inorganic materials 0.000 description 32
- 229910052757 nitrogen Inorganic materials 0.000 description 31
- 239000002245 particle Substances 0.000 description 29
- 230000008569 process Effects 0.000 description 26
- 230000007704 transition Effects 0.000 description 25
- 230000008859 change Effects 0.000 description 21
- 239000000243 solution Substances 0.000 description 21
- 238000004519 manufacturing process Methods 0.000 description 18
- 229910052710 silicon Inorganic materials 0.000 description 15
- 239000010949 copper Substances 0.000 description 14
- 239000013078 crystal Substances 0.000 description 14
- 239000011575 calcium Substances 0.000 description 13
- 229910052760 oxygen Inorganic materials 0.000 description 13
- 238000001953 recrystallisation Methods 0.000 description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 11
- 239000011572 manganese Substances 0.000 description 11
- 239000001301 oxygen Substances 0.000 description 11
- 229910052748 manganese Inorganic materials 0.000 description 10
- 229910052720 vanadium Inorganic materials 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 9
- 239000010955 niobium Substances 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 239000010936 titanium Substances 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 7
- 238000003754 machining Methods 0.000 description 7
- 239000011733 molybdenum Substances 0.000 description 7
- 229910052698 phosphorus Inorganic materials 0.000 description 7
- 229910001873 dinitrogen Inorganic materials 0.000 description 6
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- 229910052758 niobium Inorganic materials 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 238000000137 annealing Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 150000004767 nitrides Chemical class 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 230000008602 contraction Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000009864 tensile test Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000002310 Isopropyl citrate Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- CXOWYMLTGOFURZ-UHFFFAOYSA-N azanylidynechromium Chemical compound [Cr]#N CXOWYMLTGOFURZ-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000003678 scratch resistant effect Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000000368 spark atomic emission spectrometry Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 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
- 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
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
- C23C8/24—Nitriding
- C23C8/26—Nitriding of ferrous surfaces
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
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- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/004—Heat treatment of ferrous alloys containing Cr and Ni
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- C22C38/001—Ferrous alloys, e.g. steel alloys containing N
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- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
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- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
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- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/06—Surface hardening
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- C21D2211/00—Microstructure comprising significant phases
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- C21D2211/005—Ferrite
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
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Description
この特許出願では、米国特許法119条(e)項の下で、2017年3月20日出願の米国特許出願第62/473,575号、発明の名称「STEEL COMPOSITIONS AND SOLUTION NITRIDING OF STAINLESS STEEL THEREOF」の利益を主張する。なおこの文献は、本明細書において参照として全体を取り入れている。
本開示は、合金組成物とステンレス鋼の固溶窒化を含む方法とを対象にしている。
d∝√Dt 等式(1)
合金
クロム
ニッケル
モリブデン
マンガン
ケイ素
銅
窒素
他の合金元素
再結晶及び粒径
転移深さ及び非磁性FCC
硬度
耐腐食性
寸法変化
実施例1
実施例2
実施例3
実施例4
実施例5
Claims (9)
- 窒化された表面を有するFe系鋳造合金であって、前記窒化された表面がFCC相であり、前記FCC相は、
21~25.5重量%のCrと、
0.8~2.0重量%のNiと、
0.8重量%~1.5重量%のNと、
0.7重量%以下のMnと、
0.6重量%以下のSiと、
0~0.5重量%のMoと、を含み、
残部はFe及び微量元素であり、微量元素はそれぞれ0.1重量%以下の量であり、前記微量元素は随伴不純物である、Fe系鋳造合金。 - 前記FCC相は0.5重量%以下のCuを含む、請求項1に記載の合金。
- 前記FCC相は、
0.04重量%以下のPと、
0.01重量%以下のSと、
0.010重量%以下のAlと、
0.15重量%以下のVと、
0.0050重量%以下のCaと、
0.01重量%以下のOと、
0.1重量%以下のTiと、
0.5重量%以下のNbと、
を更に含む、請求項1に記載の合金。 - 前記合金は硬度が少なくとも300Hvである、請求項1に記載の合金。
- 前記合金は硬度の標準偏差が10Hv以下である、請求項4に記載の合金。
- 前記合金は孔食電位が少なくとも1000mVsceである、請求項1に記載の合金。
- 前記合金は再結晶粒の平均結晶粒径が20μm~100μmの範囲内である、請求項1に記載の合金。
- 前記再結晶粒の粒径は標準偏差が5μm~30μmである、請求項7に記載の合金。
- 窒化された表面を有する鋳造合金であって、前記窒化された表面がFCC相であり、前記FCC相は、
21~25.5重量%のCrと、
0.5~2.0重量%のNiと、
0.8重量%~1.5重量%のNと、
0.7重量%以下のMnと、
0.6重量%以下のSiと、
0~0.5重量%のMoと、
0.04重量%以下のPと、
0.01重量%以下のSと、
0.010重量%以下のAlと、
0.15重量%以下のVと、
0.0050重量%以下のCaと、
0.01重量%以下のOと、
0.1重量%以下のTiと、
0.5重量%以下のNbと、
0.1重量%以下の微量元素と、を含み、
残部はFe及び微量元素であり、微量元素はそれぞれ0.1重量%以下の量であり、前記微量元素は随伴不純物である、鋳造合金。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201762473575P | 2017-03-20 | 2017-03-20 | |
US62/473,575 | 2017-03-20 | ||
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JP2008303413A (ja) | 2007-06-06 | 2008-12-18 | Sanyo Special Steel Co Ltd | 耐食性に優れた固化成形用高窒素ステンレス鋼粉末およびその製造方法 |
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US3904401A (en) * | 1974-03-21 | 1975-09-09 | Carpenter Technology Corp | Corrosion resistant austenitic stainless steel |
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JP3470660B2 (ja) * | 1999-11-15 | 2003-11-25 | 住友金属工業株式会社 | ばね用複層組織クロム系ステンレス鋼材およびその製造方法 |
JP4009716B2 (ja) | 2002-08-08 | 2007-11-21 | 独立行政法人物質・材料研究機構 | 窒素吸収処理によるステンレス鋼製製品の製造方法とこれにより得られるステンレス鋼製製品 |
JP4379804B2 (ja) * | 2004-08-13 | 2009-12-09 | 大同特殊鋼株式会社 | 高窒素オーステナイト系ステンレス鋼 |
JP4378773B2 (ja) * | 2005-05-16 | 2009-12-09 | 独立行政法人物質・材料研究機構 | ステンレス鋼製製品の製造方法とそのステンレス鋼製製品 |
CN101680066B (zh) * | 2007-06-21 | 2011-09-28 | 杰富意钢铁株式会社 | 耐硫酸腐蚀性优良的铁素体系不锈钢板及其制造方法 |
JP5212602B2 (ja) * | 2007-09-14 | 2013-06-19 | セイコーエプソン株式会社 | 機器およびハウジング材の製造方法 |
JP5291479B2 (ja) * | 2009-01-29 | 2013-09-18 | 大同特殊鋼株式会社 | 二相ステンレス鋼並びにそれを用いた鋼材及び鋼製品 |
JP5902091B2 (ja) * | 2009-10-16 | 2016-04-13 | ホガナス アクチボラゲット | 窒素含有低ニッケル焼結ステンレス鋼 |
JP2011214058A (ja) | 2010-03-31 | 2011-10-27 | Nippon Steel & Sumikin Stainless Steel Corp | 高強度ステンレス鋼線及びその製造方法 |
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