EP3930942A4 - High nitrogen steel powder and methods of making the same - Google Patents

High nitrogen steel powder and methods of making the same Download PDF

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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Withdrawn
Application number
EP20763825.5A
Other languages
German (de)
French (fr)
Other versions
EP3930942A1 (en
Inventor
Pravansu S. Mohanty
Vikram VARADARAAJAN
Sharan NAGENDIRAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Somnio Global Holdings LLC
Original Assignee
Somnio Global Holdings LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Somnio Global Holdings LLC filed Critical Somnio Global Holdings LLC
Publication of EP3930942A1 publication Critical patent/EP3930942A1/en
Publication of EP3930942A4 publication Critical patent/EP3930942A4/en
Withdrawn legal-status Critical Current

Links

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
EP20763825.5A 2019-02-26 2020-02-26 High nitrogen steel powder and methods of making the same Withdrawn EP3930942A4 (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
MY165022A (en) * 2011-04-28 2018-02-28 Expanite As Method for solution hardening of a cold deformed workpiece of a passive alloy, and a member solution hardened by the method
KR101897321B1 (en) * 2012-04-27 2018-09-10 엑시파니테 테크놀로지 에이/에스 Method for solution hardening of a cold deformed workpiece of a passive alloy, and a member solution hardened by the 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

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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
WO2020176616A1 (en) 2020-09-03
EP3930942A1 (en) 2022-01-05
AU2020228291A1 (en) 2021-10-07
US20220134424A1 (en) 2022-05-05
CN113840673A (en) 2021-12-24
CA3131528A1 (en) 2020-09-03

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