CA3131528A1 - Poudre d'acier a haute teneur en azote et procedes de fabrication de celle-ci - Google Patents

Poudre d'acier a haute teneur en azote et procedes de fabrication de celle-ci Download PDF

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Publication number
CA3131528A1
CA3131528A1 CA3131528A CA3131528A CA3131528A1 CA 3131528 A1 CA3131528 A1 CA 3131528A1 CA 3131528 A CA3131528 A CA 3131528A CA 3131528 A CA3131528 A CA 3131528A CA 3131528 A1 CA3131528 A1 CA 3131528A1
Authority
CA
Canada
Prior art keywords
nitrogen
powder
alloy
precursor powder
precursor
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
Application number
CA3131528A
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English (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 CA3131528A1 publication Critical patent/CA3131528A1/fr
Pending legal-status Critical Current

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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)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Powder Metallurgy (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

L'invention concerne des procédés et des dispositifs pour la formation d'acier à haute teneur en azote. Les procédés comprennent le chauffage d'un précurseur d'acier à une température qui transforme l'acier en une austénite en configuration CFC, le chauffage se faisant dans une atmosphère contenant de l'azote. Après un temps d'absorption d'azote facultatif, le précurseur est encore chauffé à une température au-dessus de la T?N de l'acier mais au-dessous du point de fusion de l'acier, ce qui permet de conserver un solide et de créer une solution solide d'azote. La seconde température est éventuellement maintenue pendant un temps de conversion en nitrure, le temps de conversion en nitrure étant éventuellement trop court pour conduire au frittage de l'acier. Le procédé comprend en outre une trempe rapide de la poudre de précurseur pour maintenir la solution solide d'azote et empêcher la formation de nitrure, ce qui forme ainsi un acier à haute teneur en azote ayant peu ou pas de teneur en nitrure et comprenant de l'azote en solution solide.
CA3131528A 2019-02-26 2020-02-26 Poudre d'acier a haute teneur en azote et procedes de fabrication de celle-ci Pending CA3131528A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962810680P 2019-02-26 2019-02-26
US62/810,680 2019-02-26
PCT/US2020/019894 WO2020176616A1 (fr) 2019-02-26 2020-02-26 Poudre d'acier à haute teneur en azote et procédés de fabrication de celle-ci

Publications (1)

Publication Number Publication Date
CA3131528A1 true CA3131528A1 (fr) 2020-09-03

Family

ID=72240152

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3131528A Pending CA3131528A1 (fr) 2019-02-26 2020-02-26 Poudre d'acier a haute teneur en azote et procedes de fabrication de celle-ci

Country Status (6)

Country Link
US (1) US20220134424A1 (fr)
EP (1) EP3930942A4 (fr)
CN (1) CN113840673A (fr)
AU (1) AU2020228291A1 (fr)
CA (1) CA3131528A1 (fr)
WO (1) WO2020176616A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113751842B (zh) * 2021-09-02 2022-06-21 吉林农业科技学院 一种喷涂材料及基于热喷涂预处理的高氮钢焊接工艺
CN114032461B (zh) 2021-11-04 2022-05-27 华北理工大学 一种高强度低屈强比高耐蚀海工用高氮钢及其制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3816310A1 (de) * 1987-06-26 1989-01-12 Bbc Brown Boveri & Cie Verfahren zur anreicherung von titan in der unmittelbaren oberflaechenzone eines bauteils aus einer mindestens 2,0 gew.-% titan enthaltenden nickelbasis-superlegierung und verwendung der nach dem verfahren angereicherten oberflaeche
CN100497686C (zh) * 2006-11-06 2009-06-10 王国宁 制备高纯高氮氮化金属锰生产工艺
CN100513019C (zh) * 2007-09-06 2009-07-15 安泰科技股份有限公司 一种采用气雾化法制备含高氮不锈钢粉末的方法
KR101211032B1 (ko) * 2010-11-10 2012-12-11 한국기계연구원 강도와 연성의 조합과 내공식성이 우수한 고질소 오스테나이트계 스테인리스강 및 이의 제조방법
FR2969662B1 (fr) * 2010-12-24 2013-06-28 Commissariat Energie Atomique Procede de fabrication d'un alliage renforce par nitruration plasma.
EP2702183B1 (fr) * 2011-04-28 2017-12-20 Expanite Technology A/S Procédé de durcissement en solution d'une pièce de fabrication en alliage passif déformée à froid
KR101897321B1 (ko) * 2012-04-27 2018-09-10 엑시파니테 테크놀로지 에이/에스 패시브 합금의 냉간 변형된 가공물의 고용 경화를 위한 방법 및 상기 방법에 의해 용액 경화된 부재
JP5835256B2 (ja) * 2013-03-21 2015-12-24 株式会社デンソー フェライト系ステンレス鋼製品の製造方法
CN105177397B (zh) * 2015-10-08 2017-03-22 东睦新材料集团股份有限公司 一种粉末冶金耐磨不锈钢的制备方法
DE102016221891A1 (de) * 2016-11-08 2018-05-09 Robert Bosch Gmbh Verfahren zur Wärmebehandlung eines aus einem hochlegierten Stahl bestehenden Werkstücks

Also Published As

Publication number Publication date
EP3930942A4 (fr) 2023-01-18
EP3930942A1 (fr) 2022-01-05
CN113840673A (zh) 2021-12-24
WO2020176616A1 (fr) 2020-09-03
AU2020228291A1 (en) 2021-10-07
US20220134424A1 (en) 2022-05-05

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