EP3930942A4 - High nitrogen steel powder and methods of making the same - Google Patents
High nitrogen steel powder and methods of making the same Download PDFInfo
- Publication number
- EP3930942A4 EP3930942A4 EP20763825.5A EP20763825A EP3930942A4 EP 3930942 A4 EP3930942 A4 EP 3930942A4 EP 20763825 A EP20763825 A EP 20763825A EP 3930942 A4 EP3930942 A4 EP 3930942A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- making
- methods
- same
- steel powder
- high nitrogen
- 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.)
- Withdrawn
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title 2
- 229910000831 Steel Inorganic materials 0.000 title 1
- 229910052757 nitrogen Inorganic materials 0.000 title 1
- 239000000843 powder Substances 0.000 title 1
- 239000010959 steel Substances 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/142—Thermal or thermo-mechanical treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0207—Using a mixture of prealloyed powders or a master alloy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
-
- 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
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of manganese
-
- 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
- C23C8/60—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 solids, e.g. powders, pastes
- C23C8/62—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 solids, e.g. powders, pastes only one element being applied
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/052—Metallic powder characterised by the size or surface area of the particles characterised by a mixture of particles of different sizes or by the particle size distribution
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/35—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Powder Metallurgy (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962810680P | 2019-02-26 | 2019-02-26 | |
PCT/US2020/019894 WO2020176616A1 (en) | 2019-02-26 | 2020-02-26 | High nitrogen steel powder and methods of making the same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3930942A1 EP3930942A1 (en) | 2022-01-05 |
EP3930942A4 true EP3930942A4 (en) | 2023-01-18 |
Family
ID=72240152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20763825.5A Withdrawn EP3930942A4 (en) | 2019-02-26 | 2020-02-26 | High nitrogen steel powder and methods of making the same |
Country Status (6)
Country | Link |
---|---|
US (1) | US20220134424A1 (en) |
EP (1) | EP3930942A4 (en) |
CN (1) | CN113840673A (en) |
AU (1) | AU2020228291A1 (en) |
CA (1) | CA3131528A1 (en) |
WO (1) | WO2020176616A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113751842B (en) * | 2021-09-02 | 2022-06-21 | 吉林农业科技学院 | Spraying material and high-nitrogen steel welding process based on thermal spraying pretreatment |
CN114032461B (en) | 2021-11-04 | 2022-05-27 | 华北理工大学 | High-nitrogen steel with high strength, low yield ratio and high corrosion resistance for marine engineering and preparation method thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0456847A1 (en) * | 1987-06-26 | 1991-11-21 | Bernex Gmbh | Method of producing a wear- and corrosion-resistant protective coating layer, composed of an austenitic steel alloy and so produced protective layer |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100497686C (en) * | 2006-11-06 | 2009-06-10 | 王国宁 | Production technique for preparing high-purity high-nitrogen nitrogenized manganese metal |
CN100513019C (en) * | 2007-09-06 | 2009-07-15 | 安泰科技股份有限公司 | Method for producing stainless steel powder containing nitrogen high nitrogen by adopting gas atomization method |
KR101211032B1 (en) * | 2010-11-10 | 2012-12-11 | 한국기계연구원 | High-nitrogen austenitic stainless steels with good Eco-index and excellent pitting corrosion resistance, and fabrication methods thereof |
FR2969662B1 (en) * | 2010-12-24 | 2013-06-28 | Commissariat Energie Atomique | PROCESS FOR MANUFACTURING PLASMA NITRURATION REINFORCED ALLOY |
WO2012146254A1 (en) * | 2011-04-28 | 2012-11-01 | Expanite A/S | Method for solution hardening of a cold deformed workpiece of a passive alloy, and a member solution hardened by the method |
JP6241896B2 (en) * | 2012-04-27 | 2017-12-06 | エクスパナイト テクノロジー アグシャセルスガーッブExpanite Technology A/S | Method for solution hardening of cold-deformed workpieces of passive alloys, and members solution-hardened by this method |
JP5835256B2 (en) * | 2013-03-21 | 2015-12-24 | 株式会社デンソー | Manufacturing method of ferritic stainless steel products |
CN105177397B (en) * | 2015-10-08 | 2017-03-22 | 东睦新材料集团股份有限公司 | Preparation method for powder metallurgy wear-resisting stainless steel |
DE102016221891A1 (en) * | 2016-11-08 | 2018-05-09 | Robert Bosch Gmbh | Process for the heat treatment of a high-alloy steel workpiece |
-
2020
- 2020-02-26 EP EP20763825.5A patent/EP3930942A4/en not_active Withdrawn
- 2020-02-26 AU AU2020228291A patent/AU2020228291A1/en not_active Abandoned
- 2020-02-26 CA CA3131528A patent/CA3131528A1/en active Pending
- 2020-02-26 CN CN202080031000.1A patent/CN113840673A/en active Pending
- 2020-02-26 US US17/434,273 patent/US20220134424A1/en not_active Abandoned
- 2020-02-26 WO PCT/US2020/019894 patent/WO2020176616A1/en unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0456847A1 (en) * | 1987-06-26 | 1991-11-21 | Bernex Gmbh | Method of producing a wear- and corrosion-resistant protective coating layer, composed of an austenitic steel alloy and so produced protective layer |
Non-Patent Citations (5)
Title |
---|
FEICHTINGER HEINRICH K ET AL: "Investigation of the Nitriding Process of Stainless Steel Powder Determination of Hydrogen in the Foundry View project Metallurgy of High Nitrogen Steels View project", 1 October 1990 (1990-10-01), pages 320 - 325, XP093006692, Retrieved from the Internet <URL:https://www.researchgate.net/profile/Heinrich-Feichtinger/publication/255718795_Investigation_of_the_Nitriding_Process_of_Stainless_Steel_Powder/links/00b7d520a70a7bb790000000/Investigation-of-the-Nitriding-Process-of-Stainless-Steel-Powder.pdf> [retrieved on 20221209] * |
J W SIMMONS: "MATERIALS SCIENCE & ENGINEERING A Overview: high-nitrogen alloying of stainless steels", ELSEVIER MATERIALS SCIENCE AND ENGINEERING A207, 1 January 1996 (1996-01-01), pages 169, XP055302525, Retrieved from the Internet <URL:http://www.sciencedirect.com/science/article/pii/0921509395099913/pdf?md5=a4fe609b74c3e5d258d8a58dd01e5673&pid=1-s2.0-0921509395099913-main.pdf> [retrieved on 20221209] * |
See also references of WO2020176616A1 * |
SIMMONS J W ET AL: "THE P/M PROCESSING OF HIGH-NITROGEN STAINLESS STEELS", JOM: JOURNAL OF METALS, SPRINGER NEW YORK LLC, UNITED STATES, vol. 48, no. 4, 1 April 1996 (1996-04-01), pages 20 - 23, XP000587561, ISSN: 1047-4838 * |
WANG TSAI-CHEN ET AL: "Fluidized-Bed Nitridation of Stainless Steel Powder", MATERIALS AND MANUFACTURING PROCESSES., vol. 12, no. 2, 1 March 1997 (1997-03-01), US, pages 275 - 290, XP093006696, ISSN: 1042-6914, DOI: 10.1080/10426919708935141 * |
Also Published As
Publication number | Publication date |
---|---|
EP3930942A1 (en) | 2022-01-05 |
AU2020228291A1 (en) | 2021-10-07 |
CA3131528A1 (en) | 2020-09-03 |
WO2020176616A1 (en) | 2020-09-03 |
CN113840673A (en) | 2021-12-24 |
US20220134424A1 (en) | 2022-05-05 |
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Effective date: 20210922 |
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DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
A4 | Supplementary search report drawn up and despatched |
Effective date: 20221220 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: C22C 33/02 20060101ALI20221214BHEP Ipc: B22F 1/145 20220101ALI20221214BHEP Ipc: B22F 1/142 20220101ALI20221214BHEP Ipc: C22C 38/12 20060101ALI20221214BHEP Ipc: B22F 7/00 20060101ALI20221214BHEP Ipc: B22F 1/00 20220101AFI20221214BHEP |
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Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20230722 |