EP4303335A1 - Martensitischer edelstahl zur stickstoffanreicherungsbehandlung und martensitisches edelstahlelement - Google Patents
Martensitischer edelstahl zur stickstoffanreicherungsbehandlung und martensitisches edelstahlelement Download PDFInfo
- Publication number
- EP4303335A1 EP4303335A1 EP23184154.5A EP23184154A EP4303335A1 EP 4303335 A1 EP4303335 A1 EP 4303335A1 EP 23184154 A EP23184154 A EP 23184154A EP 4303335 A1 EP4303335 A1 EP 4303335A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mass
- nitrogen
- stainless steel
- martensitic stainless
- less
- 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.)
- Pending
Links
- 229910001105 martensitic stainless steel Inorganic materials 0.000 title claims abstract description 95
- 229910000859 α-Fe Inorganic materials 0.000 claims abstract description 47
- 239000012535 impurity Substances 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 196
- 229910052757 nitrogen Inorganic materials 0.000 claims description 99
- 239000012071 phase Substances 0.000 claims description 51
- 238000000034 method Methods 0.000 claims description 50
- 239000013078 crystal Substances 0.000 claims description 45
- 238000010521 absorption reaction Methods 0.000 claims description 36
- 239000007790 solid phase Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000005121 nitriding Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 7
- 238000010791 quenching Methods 0.000 description 35
- 230000000171 quenching effect Effects 0.000 description 35
- 238000005260 corrosion Methods 0.000 description 32
- 230000007797 corrosion Effects 0.000 description 32
- 239000010410 layer Substances 0.000 description 32
- 239000000463 material Substances 0.000 description 23
- 238000000137 annealing Methods 0.000 description 22
- 239000011651 chromium Substances 0.000 description 22
- 238000005496 tempering Methods 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 17
- 230000000694 effects Effects 0.000 description 17
- 238000005452 bending Methods 0.000 description 14
- 238000001816 cooling Methods 0.000 description 14
- 238000009661 fatigue test Methods 0.000 description 13
- 239000000203 mixture Substances 0.000 description 13
- 229910000734 martensite Inorganic materials 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 10
- 238000005242 forging Methods 0.000 description 8
- 238000005482 strain hardening Methods 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 6
- 229910001566 austenite Inorganic materials 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 238000007670 refining Methods 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 229910052720 vanadium Inorganic materials 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000005266 casting Methods 0.000 description 4
- 150000004767 nitrides Chemical class 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 3
- 230000001771 impaired effect Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000005457 ice water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- C21—METALLURGY OF IRON
- 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
- C21D1/06—Surface hardening
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/19—Hardening; Quenching with or without subsequent tempering by interrupted quenching
- C21D1/22—Martempering
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D1/56—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering characterised by the quenching agents
- C21D1/613—Gases; Liquefied or solidified normally gaseous material
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- 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
- C21D6/04—Hardening by cooling below 0 degrees Celsius
-
- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
-
- 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
- C22C38/46—Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
-
- 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
- C22C38/48—Ferrous alloys, e.g. steel alloys containing chromium with nickel with niobium or tantalum
-
- 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
- C22C38/50—Ferrous alloys, e.g. steel alloys containing chromium with nickel with titanium or zirconium
-
- 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
-
- 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
- C23C8/36—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 using ionised gases, e.g. ionitriding
-
- 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
- C23C8/80—After-treatment
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022110838A JP2024008729A (ja) | 2022-07-08 | 2022-07-08 | 窒素富化処理用マルテンサイト系ステンレス鋼及びマルテンサイト系ステンレス鋼部材 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4303335A1 true EP4303335A1 (de) | 2024-01-10 |
Family
ID=87196175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23184154.5A Pending EP4303335A1 (de) | 2022-07-08 | 2023-07-07 | Martensitischer edelstahl zur stickstoffanreicherungsbehandlung und martensitisches edelstahlelement |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4303335A1 (de) |
| JP (1) | JP2024008729A (de) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5360318A (en) * | 1992-08-06 | 1994-11-01 | Hitachi Ltd. | Compressor for gas turbine and gas turbine |
| JPH1036945A (ja) * | 1996-07-19 | 1998-02-10 | Nippon Steel Corp | ねじ込み性に優れた高耐銹性マルテンサイト系ステンレス製ドリリングタッピンねじ及びその焼入方法 |
| JPH1150203A (ja) * | 1997-07-31 | 1999-02-23 | Nippon Steel Corp | 表面高硬度、高耐食性、高靭性マルテンサイト系ステンレス鋼 |
| JP2000239805A (ja) * | 1999-02-19 | 2000-09-05 | Daido Steel Co Ltd | 耐食性及び冷間加工性に優れた高硬度マルテンサイト系ステンレス鋼 |
| US6182439B1 (en) * | 1996-09-24 | 2001-02-06 | Hitachi, Ltd. | High and low pressure sides-integrating system turbine, long blades thereof and combined cycle power generation system |
| US20150284817A1 (en) * | 2008-04-11 | 2015-10-08 | Questek Innovations Llc | Martensitic Stainless Steel Strengthened by Copper-Nucleated Nitride Precipitates |
| JP2019167630A (ja) | 2016-03-04 | 2019-10-03 | 日立金属株式会社 | マルテンサイト系ステンレス鋼部材 |
| JP2020050916A (ja) | 2018-09-27 | 2020-04-02 | 日鉄ステンレス株式会社 | 冷間加工性に優れる高硬度・高耐食性用途のマルテンサイト系ステンレス鋼及びその製造方法 |
| JP2020180313A (ja) * | 2019-04-23 | 2020-11-05 | 大同特殊鋼株式会社 | 高硬度部材及びその製造方法 |
| JP2021143388A (ja) | 2020-03-12 | 2021-09-24 | 日鉄ステンレス株式会社 | 耐久性に優れた高強度・高耐食性のマルテンサイト系ステンレス鋼及びその製造方法 |
| US20210363621A1 (en) * | 2020-05-22 | 2021-11-25 | Crs Holdings, Inc. | Strong, Tough, and Hard Stainless Steel and Article Made Therefrom |
| JP2022110838A (ja) | 2021-01-19 | 2022-07-29 | アンリツ株式会社 | アンテナ及びそれを備えたアンテナ装置 |
-
2022
- 2022-07-08 JP JP2022110838A patent/JP2024008729A/ja active Pending
-
2023
- 2023-07-07 EP EP23184154.5A patent/EP4303335A1/de active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5360318A (en) * | 1992-08-06 | 1994-11-01 | Hitachi Ltd. | Compressor for gas turbine and gas turbine |
| JPH1036945A (ja) * | 1996-07-19 | 1998-02-10 | Nippon Steel Corp | ねじ込み性に優れた高耐銹性マルテンサイト系ステンレス製ドリリングタッピンねじ及びその焼入方法 |
| US6182439B1 (en) * | 1996-09-24 | 2001-02-06 | Hitachi, Ltd. | High and low pressure sides-integrating system turbine, long blades thereof and combined cycle power generation system |
| JPH1150203A (ja) * | 1997-07-31 | 1999-02-23 | Nippon Steel Corp | 表面高硬度、高耐食性、高靭性マルテンサイト系ステンレス鋼 |
| JP2000239805A (ja) * | 1999-02-19 | 2000-09-05 | Daido Steel Co Ltd | 耐食性及び冷間加工性に優れた高硬度マルテンサイト系ステンレス鋼 |
| US20150284817A1 (en) * | 2008-04-11 | 2015-10-08 | Questek Innovations Llc | Martensitic Stainless Steel Strengthened by Copper-Nucleated Nitride Precipitates |
| JP2019167630A (ja) | 2016-03-04 | 2019-10-03 | 日立金属株式会社 | マルテンサイト系ステンレス鋼部材 |
| JP2020050916A (ja) | 2018-09-27 | 2020-04-02 | 日鉄ステンレス株式会社 | 冷間加工性に優れる高硬度・高耐食性用途のマルテンサイト系ステンレス鋼及びその製造方法 |
| JP2020180313A (ja) * | 2019-04-23 | 2020-11-05 | 大同特殊鋼株式会社 | 高硬度部材及びその製造方法 |
| JP2021143388A (ja) | 2020-03-12 | 2021-09-24 | 日鉄ステンレス株式会社 | 耐久性に優れた高強度・高耐食性のマルテンサイト系ステンレス鋼及びその製造方法 |
| US20210363621A1 (en) * | 2020-05-22 | 2021-11-25 | Crs Holdings, Inc. | Strong, Tough, and Hard Stainless Steel and Article Made Therefrom |
| JP2022110838A (ja) | 2021-01-19 | 2022-07-29 | アンリツ株式会社 | アンテナ及びそれを備えたアンテナ装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2024008729A (ja) | 2024-01-19 |
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