BR112014015779A2 - placa de aço espessa de alta resistência para uso estrutural com excelente capacidade de captura de rachadura frágil e método para produzir a mesma - Google Patents

placa de aço espessa de alta resistência para uso estrutural com excelente capacidade de captura de rachadura frágil e método para produzir a mesma

Info

Publication number
BR112014015779A2
BR112014015779A2 BR112014015779A BR112014015779A BR112014015779A2 BR 112014015779 A2 BR112014015779 A2 BR 112014015779A2 BR 112014015779 A BR112014015779 A BR 112014015779A BR 112014015779 A BR112014015779 A BR 112014015779A BR 112014015779 A2 BR112014015779 A2 BR 112014015779A2
Authority
BR
Brazil
Prior art keywords
steel plate
thickness
high strength
central portion
produce
Prior art date
Application number
BR112014015779A
Other languages
English (en)
Other versions
BR112014015779B1 (pt
BR112014015779A8 (pt
Inventor
Hase Kazukuni
Mitao Shinji
Murakam Yoshiaki
Takeuchi Yoshiko
Original Assignee
Jfe Steel Corp
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 Jfe Steel Corp filed Critical Jfe Steel Corp
Publication of BR112014015779A2 publication Critical patent/BR112014015779A2/pt
Publication of BR112014015779A8 publication Critical patent/BR112014015779A8/pt
Publication of BR112014015779B1 publication Critical patent/BR112014015779B1/pt

Links

Classifications

    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips of ferrous alloys
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties 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
    • 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 by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following 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
    • 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
    • C22C38/02—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
    • C22C38/06—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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing 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
    • 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

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)

Abstract

resumo placa de aço espessa de alta resistência para uso estrutural com excelente capacidade de captura de rachadura frágil e método para produzir a mesma placa de aço espessa de alta resistência para uso estrutural com uma espessura de 50 mm ou mais e excelente capacidade de captura de rachadura frágil. a placa de aço tem uma estrutura metalográfica que inclui uma fase de bainita, uma textura na qual o grau de integração i do plano de rd//(110) em uma porção central na direção da espessura é 1,5 ou mais e uma temperatura de transição de aparecimento de fratura charpy vtrs em uma porção de superfície e na porção central na direção da espessura de -40°c ou menos. a placa de aço tem a temperatura de transição de aparecimento de fratura charpy e o grau de integração i do plano de rd//(110) na porção central na direção de espessura satisfaz a expressão de relação abaixo: vtrs(1/2t) - 12 ? ird//(110)[1/2 t] ? -70 ··· (1), onde vtrs(1/2t): temperatura de transição de aparecimento de fratura (°c) na porção central na direção da espessura e ird//(110)[1/2t]: grau de integração do plano de rd//(110) na porção central na direção de espessura.
BR112014015779-0A 2011-12-27 2012-05-18 Método para produzir uma placa de aço espessa de alta resistência para uso estrutural BR112014015779B1 (pt)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2011285570 2011-12-27
JP2011-285570 2011-12-27
JP2012111158A JP5304925B2 (ja) 2011-12-27 2012-05-15 脆性亀裂伝播停止特性に優れた構造用高強度厚鋼板およびその製造方法
JP2012-111158 2012-05-15
PCT/JP2012/063409 WO2013099318A1 (ja) 2011-12-27 2012-05-18 脆性亀裂伝播停止特性に優れた構造用高強度厚鋼板およびその製造方法

Publications (3)

Publication Number Publication Date
BR112014015779A2 true BR112014015779A2 (pt) 2017-06-13
BR112014015779A8 BR112014015779A8 (pt) 2017-07-04
BR112014015779B1 BR112014015779B1 (pt) 2019-04-09

Family

ID=48696841

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112014015779-0A BR112014015779B1 (pt) 2011-12-27 2012-05-18 Método para produzir uma placa de aço espessa de alta resistência para uso estrutural

Country Status (6)

Country Link
EP (1) EP2799584B1 (pt)
JP (1) JP5304925B2 (pt)
KR (1) KR101588258B1 (pt)
CN (1) CN104024462B (pt)
BR (1) BR112014015779B1 (pt)
WO (1) WO2013099318A1 (pt)

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* Cited by examiner, † Cited by third party
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WO2014155440A1 (ja) * 2013-03-26 2014-10-02 Ｊｆｅスチール株式会社 脆性亀裂伝播停止特性に優れた大入熱溶接用高強度厚鋼板およびその製造方法
KR101523229B1 (ko) * 2013-11-28 2015-05-28 한국생산기술연구원 저온 특성이 향상된 금속 재료 및 그 제조방법
CN105980588B (zh) * 2013-12-12 2018-04-27 杰富意钢铁株式会社 钢板及其制造方法
JP6245352B2 (ja) 2014-03-31 2017-12-13 Ｊｆｅスチール株式会社 高張力鋼板およびその製造方法
EP3239332B1 (en) * 2014-12-24 2019-11-20 Posco High-strength steel having superior brittle crack arrestability, and production method therefor
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
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
WO2017047088A1 (ja) 2015-09-18 2017-03-23 Ｊｆｅスチール株式会社 構造用高強度厚鋼板およびその製造方法
CN108779525A (zh) * 2016-02-24 2018-11-09 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
RU2630086C1 (ru) * 2016-06-14 2017-09-05 Федеральное государственное бюджетное образовательное учреждение высшего образования "Калининградский государственный технический университет" Малокремнистая судостроительная сталь
KR102193527B1 (ko) * 2016-08-09 2020-12-21 제이에프이 스틸 가부시키가이샤 고강도 후강판 및 그의 제조 방법
WO2018030186A1 (ja) * 2016-08-09 2018-02-15 Ｊｆｅスチール株式会社 高強度厚鋼板およびその製造方法
JP6274375B1 (ja) * 2016-08-09 2018-02-07 Ｊｆｅスチール株式会社 高強度厚鋼板およびその製造方法

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JP5487892B2 (ja) * 2009-11-12 2014-05-14 新日鐵住金株式会社 低温靭性の優れた低降伏比高張力鋼板の製造方法

Also Published As

Publication number Publication date
EP2799584B1 (en) 2019-01-02
JP2013151732A (ja) 2013-08-08
BR112014015779B1 (pt) 2019-04-09
EP2799584A4 (en) 2015-01-07
CN104024462A (zh) 2014-09-03
KR20140097463A (ko) 2014-08-06
CN104024462B (zh) 2016-03-23
EP2799584A1 (en) 2014-11-05
KR101588258B1 (ko) 2016-01-25
BR112014015779A8 (pt) 2017-07-04
JP5304925B2 (ja) 2013-10-02
WO2013099318A1 (ja) 2013-07-04

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B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application according art. 36 industrial patent law
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Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 18/05/2012, OBSERVADAS AS CONDICOES LEGAIS. (CO) 20 (VINTE) ANOS CONTADOS A PARTIR DE 18/05/2012, OBSERVADAS AS CONDICOES LEGAIS