EP2520683A4 - Tôle d'acier à haute résistance présentant une excellente résistance aux fissures fragiles et procédé de fabrication de celle-ci - Google Patents

Tôle d'acier à haute résistance présentant une excellente résistance aux fissures fragiles et procédé de fabrication de celle-ci

Info

Publication number
EP2520683A4
EP2520683A4 EP10841181.0A EP10841181A EP2520683A4 EP 2520683 A4 EP2520683 A4 EP 2520683A4 EP 10841181 A EP10841181 A EP 10841181A EP 2520683 A4 EP2520683 A4 EP 2520683A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
steel sheet
high strength
strength steel
crack resistance
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.)
Granted
Application number
EP10841181.0A
Other languages
German (de)
English (en)
Other versions
EP2520683B1 (fr
EP2520683A2 (fr
Inventor
Sang-Ho Kim
Ki-Hyun Bang
In-Shik Suh
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.)
Posco Holdings Inc
Original Assignee
Posco Co Ltd
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 Posco Co Ltd filed Critical Posco Co Ltd
Publication of EP2520683A2 publication Critical patent/EP2520683A2/fr
Publication of EP2520683A4 publication Critical patent/EP2520683A4/fr
Application granted granted Critical
Publication of EP2520683B1 publication Critical patent/EP2520683B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/02—Rolling special iron alloys, e.g. stainless steel
    • 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • 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
    • C21D8/00—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/08—Ferrous alloys, e.g. steel alloys containing nickel
    • 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
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C21D2201/00—Treatment for obtaining particular effects
    • C21D2201/05—Grain orientation
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/002—Bainite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/005—Ferrite
    • 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
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
EP10841181.0A 2009-12-28 2010-12-22 Tôle d'acier à haute résistance présentant une excellente résistance aux fissures fragiles et procédé de fabrication de celle-ci Active EP2520683B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020090131740A KR101360737B1 (ko) 2009-12-28 2009-12-28 취성 균열 발생 저항성이 우수한 고강도 강판 및 그 제조방법
PCT/KR2010/009222 WO2011081349A2 (fr) 2009-12-28 2010-12-22 Tôle d'acier à haute résistance présentant une excellente résistance aux fissures fragiles et procédé de fabrication de celle-ci

Publications (3)

Publication Number Publication Date
EP2520683A2 EP2520683A2 (fr) 2012-11-07
EP2520683A4 true EP2520683A4 (fr) 2015-03-11
EP2520683B1 EP2520683B1 (fr) 2016-11-30

Family

ID=44226970

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10841181.0A Active EP2520683B1 (fr) 2009-12-28 2010-12-22 Tôle d'acier à haute résistance présentant une excellente résistance aux fissures fragiles et procédé de fabrication de celle-ci

Country Status (4)

Country Link
EP (1) EP2520683B1 (fr)
KR (1) KR101360737B1 (fr)
CN (1) CN102753719B (fr)
WO (1) WO2011081349A2 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103695807B (zh) * 2013-12-13 2016-01-20 莱芜钢铁集团有限公司 止裂性优良的超高强x100管线钢板及其制备方法
CN103882312B (zh) * 2014-03-04 2016-04-27 南京钢铁股份有限公司 低成本高韧性-140℃低温用钢板的制造方法
WO2016105064A1 (fr) 2014-12-24 2016-06-30 주식회사 포스코 Acier à haute résistance ayant une excellente résistance à la propagation de fissures fragiles et procédé de production s'y rapportant
CN107109597B (zh) * 2014-12-24 2020-01-31 Posco公司 耐脆性裂纹扩展性优异的高强度钢材及其制造方法
CN107109590A (zh) * 2014-12-24 2017-08-29 Posco公司 耐脆性裂纹扩展性优异的高强度钢材及其制造方法
KR101657827B1 (ko) * 2014-12-24 2016-09-20 주식회사 포스코 취성균열전파 저항성이 우수한 구조용 극후물 강재 및 그 제조방법
EP3095889A1 (fr) 2015-05-22 2016-11-23 Outokumpu Oyj Procédé de fabrication d'un composant en acier austénitique
SI3117922T1 (en) 2015-07-16 2018-07-31 Outokumpu Oyj A method for producing a component of TWIP or TRIP / TWIP austenitic steel
KR101726082B1 (ko) * 2015-12-04 2017-04-12 주식회사 포스코 취성균열전파 저항성 및 용접부 취성균열개시 저항성이 우수한 고강도 강재 및 그 제조방법
KR101736611B1 (ko) * 2015-12-04 2017-05-17 주식회사 포스코 취성균열전파 저항성 및 용접부 취성균열개시 저항성이 우수한 고강도 강재 및 그 제조방법
KR101758520B1 (ko) * 2015-12-23 2017-07-17 주식회사 포스코 열간 저항성이 우수한 고강도 구조용 강판 및 그 제조방법
CN115652197A (zh) * 2016-02-24 2023-01-31 杰富意钢铁株式会社 脆性裂纹传播停止特性优良的高强度极厚钢板及其制造方法
KR101917456B1 (ko) 2016-12-22 2018-11-09 주식회사 포스코 표면부 nrl-dwt 물성이 우수한 극후물 강재 및 그 제조방법
KR102209561B1 (ko) * 2018-11-30 2021-01-28 주식회사 포스코 취성균열전파 저항성이 우수한 극후물 강재 및 그 제조방법
KR102220739B1 (ko) * 2018-12-19 2021-03-02 주식회사 포스코 두께 중심부 인성이 우수한 극후물 강판의 제조방법

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2128293A1 (fr) * 2008-05-27 2009-12-02 Posco Feuilles d'acier de faible densité et grande résistance doté d'une excellente résistance à la formation de rides et leur procédé de fabrication

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4341396B2 (ja) * 2003-03-27 2009-10-07 Ｊｆｅスチール株式会社 低温靱性および溶接性に優れた高強度電縫管用熱延鋼帯
WO2005052205A1 (fr) * 2003-11-27 2005-06-09 Sumitomo Metal Industries, Ltd. Acier a haute resistance mecanique presentant une zone soudee d'une durete excellente et une structure offshore associee
CN101153370B (zh) * 2006-09-27 2012-06-13 鞍钢股份有限公司 一种可大线能量焊接的低合金高强度钢板及其制造方法
EP2060643B1 (fr) 2006-12-20 2012-04-18 Nippon Steel Corporation Acier excellant par sa dureté dans les zones affectées par la chaleur de la soudure
JP4934505B2 (ja) * 2007-05-29 2012-05-16 株式会社神戸製鋼所 疲労亀裂進展抑制特性および脆性破壊抑制特性に優れた鋼板
KR20110125277A (ko) * 2007-12-07 2011-11-18 신닛뽄세이테쯔 카부시키카이샤 용접열 영향부의 ｃｔｏｄ 특성이 우수한 강 및 그 제조 방법

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2128293A1 (fr) * 2008-05-27 2009-12-02 Posco Feuilles d'acier de faible densité et grande résistance doté d'une excellente résistance à la formation de rides et leur procédé de fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011081349A2 *

Also Published As

Publication number Publication date
WO2011081349A2 (fr) 2011-07-07
CN102753719B (zh) 2015-08-19
WO2011081349A3 (fr) 2011-11-10
EP2520683B1 (fr) 2016-11-30
CN102753719A (zh) 2012-10-24
KR101360737B1 (ko) 2014-02-07
EP2520683A2 (fr) 2012-11-07
KR20110075321A (ko) 2011-07-06

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