BR112014000063A2 - chapa de aço laminada a frio - Google Patents

chapa de aço laminada a frio

Info

Publication number
BR112014000063A2
BR112014000063A2 BR112014000063A BR112014000063A BR112014000063A2 BR 112014000063 A2 BR112014000063 A2 BR 112014000063A2 BR 112014000063 A BR112014000063 A BR 112014000063A BR 112014000063 A BR112014000063 A BR 112014000063A BR 112014000063 A2 BR112014000063 A2 BR 112014000063A2
Authority
BR
Brazil
Prior art keywords
less
retained austenite
steel sheet
rolled steel
grain size
Prior art date
Application number
BR112014000063A
Other languages
English (en)
Inventor
Haga Jun
Wakita Masayuki
Imai Norio
Nishio Takuya
Tomida Toshiro
Tanaka Yasuaki
Original Assignee
Nippon Steel & Sumitomo Metal 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47436973&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR112014000063(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP2011150245A external-priority patent/JP5708320B2/ja
Priority claimed from JP2011150240A external-priority patent/JP5708319B2/ja
Priority claimed from JP2011150239A external-priority patent/JP5708318B2/ja
Application filed by Nippon Steel & Sumitomo Metal Corp filed Critical Nippon Steel & Sumitomo Metal Corp
Publication of BR112014000063A2 publication Critical patent/BR112014000063A2/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
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/62—Quenching devices
    • C21D1/673—Quenching devices for die quenching
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • C21D9/48—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals deep-drawing sheets
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • 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
    • C22C38/12—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
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • 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
    • 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
    • C21D2211/001—Austenite
    • 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
    • C21D2211/00—Microstructure comprising significant phases
    • C21D2211/008—Martensite

Abstract

abstract cold-rolled steel sheet a high-strength cold-rolled steel sheet excellent in ductility, work hardenability, and stretch flangeability, and having tensile strength of 780 mpa or more includes: a chemical composition containing, in mass percent, c: more than 0.020% to less than 0.30%, si: more than 0.10% to 3.00% or less, mn: more than 1.00% to 3.50% or less; and metallurgical structure whose main phase is a low-temperature transformation product, and whose secondary phase contains retained austenite. the retained austenite has a volume fraction relative to overall structure of more than 4.0% to less than 25.0% and an average grain size of less than 0.80 ?m, and of the retained austenite, the number density of retained austenite grains whose grain size is 1.2 ?m or more is 3.0 ? 10-2 grains/?m2 or less. ______________________________________________________________________ tradução do resumo resumo patente de invenção: "chapa de aço laminada a frio". uma chapa de aço laminada a frio de alta resistência excelente em ductilidade, capacidade de endurecimento no trabalho, e capacidade de flangeamento no estiramento, e tendo resistência à tração de 780 mpa ou mais inclui: uma composição química contendo, em percentual em massa, c: mais que 0,020% a menos que 0,30%, si: mais que 0,10% a 3,00% ou menos, mn: mais que 1,00% a 3,50% ou menos; e estrutura metalúrgica cuja fase principal é um produto de transformação a baixa temperatura, e cuja fase secundária contém austenita retida. a austenita retida tem uma fração de volume em relação à estrutura total de mais de 4,0% a menos que 25,0% e um tamanho médio de grão de menos que 0,80 ?m, e a austenita retida, a densidade do número de grãos de austenita retida cujo tamanho de grão é 1,2 ?m ou mais é 3,0 ? 10-2 grãos/?m2 ou menos.
BR112014000063A 2011-07-06 2012-06-27 chapa de aço laminada a frio BR112014000063A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011150245A JP5708320B2 (ja) 2011-07-06 2011-07-06 冷延鋼板
JP2011150240A JP5708319B2 (ja) 2011-07-06 2011-07-06 冷延鋼板
JP2011150239A JP5708318B2 (ja) 2011-07-06 2011-07-06 冷延鋼板
PCT/JP2012/066380 WO2013005618A1 (ja) 2011-07-06 2012-06-27 冷延鋼板

Publications (1)

Publication Number Publication Date
BR112014000063A2 true BR112014000063A2 (pt) 2017-02-14

Family

ID=47436973

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112014000063A BR112014000063A2 (pt) 2011-07-06 2012-06-27 chapa de aço laminada a frio

Country Status (12)

Country Link
US (1) US9523139B2 (pt)
EP (1) EP2730672B1 (pt)
KR (1) KR101597058B1 (pt)
CN (1) CN103781932B (pt)
BR (1) BR112014000063A2 (pt)
CA (1) CA2841061C (pt)
ES (1) ES2665318T3 (pt)
IN (1) IN2014DN00268A (pt)
MX (1) MX356410B (pt)
PL (1) PL2730672T3 (pt)
RU (1) RU2560479C1 (pt)
WO (1) WO2013005618A1 (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015200013A (ja) * 2014-03-31 2015-11-12 株式会社神戸製鋼所 延性、伸びフランジ性、および溶接性に優れた高強度冷延鋼板、高強度溶融亜鉛めっき鋼板、および高強度合金化溶融亜鉛めっき鋼板
WO2015177582A1 (fr) 2014-05-20 2015-11-26 Arcelormittal Investigación Y Desarrollo Sl Tôle d'acier doublement recuite à hautes caractéristiques mécaniques de résistance et ductilité, procédé de fabrication et utilisation de telles tôles
EP3263733B1 (en) * 2015-02-24 2020-01-08 Nippon Steel Corporation Cold-rolled steel sheet and method of manufacturing same
JP6554397B2 (ja) * 2015-03-31 2019-07-31 株式会社神戸製鋼所 加工性および衝突特性に優れた引張強度が９８０ＭＰａ以上の高強度冷延鋼板、およびその製造方法
EP3318652B1 (en) * 2015-06-30 2021-05-26 Nippon Steel Corporation High-strength cold-rolled steel sheet, high-strength galvanized steel sheet, and high-strength galvannealed steel sheet
RU2602585C1 (ru) * 2015-11-20 2016-11-20 Федеральное Государственное Унитарное Предприятие "Центральный научно-исследовательский институт черной металлургии им. И.П. Бардина" (ФГУП "ЦНИИчермет им. И.П. Бардина") Плакированная высокопрочная коррозионно-стойкая сталь
JP6384623B2 (ja) 2016-08-10 2018-09-05 Ｊｆｅスチール株式会社 高強度鋼板およびその製造方法
EP3701058A1 (en) 2017-10-24 2020-09-02 ArcelorMittal A method for the manufacture of a galvannealed steel sheet
CA3076581A1 (en) * 2017-10-24 2019-05-02 Arcelormittal A method for the manufacture of a coated steel sheet
RU2761927C1 (ru) 2017-11-17 2021-12-14 Арселормиттал Способ изготовления стального листа с цинковым покрытием, стойкого к жидкометаллическому охрупчиванию
EP3715491A4 (en) * 2017-11-24 2021-03-24 Nippon Steel Corporation HOT ROLLED STEEL SHEET AND MANUFACTURING METHOD FOR IT
WO2019180492A1 (en) * 2018-03-23 2019-09-26 Arcelormittal Forged part of bainitic steel and a method of manufacturing thereof
CN115652207B (zh) * 2022-11-07 2023-05-12 鞍钢股份有限公司 780MPa级短流程经济型冷轧DH钢板及其生产方法

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JPS58123823A (ja) 1981-12-11 1983-07-23 Nippon Steel Corp 極細粒高強度熱延鋼板の製造方法
JPS59229413A (ja) 1983-06-10 1984-12-22 Nippon Steel Corp 超細粒フェライト鋼の製造方法
US6319338B1 (en) * 1996-11-28 2001-11-20 Nippon Steel Corporation High-strength steel plate having high dynamic deformation resistance and method of manufacturing the same
JPH1161326A (ja) 1997-08-06 1999-03-05 Nippon Steel Corp 耐衝突安全性及び成形性に優れた自動車用高強度鋼板とその製造方法
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BR9806204A (pt) * 1997-09-11 2000-02-15 Kawasaki Heavy Ind Ltd Chapa de aço laminada a quente que apresenta grãos finos com formabilidade aperfeiçoada, produção de chapa de aço laminada a quente ou laminada a frio.
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CN101297051B (zh) * 2005-12-06 2010-12-29 株式会社神户制钢所 耐粉化性优异的高强度合金化熔融镀锌钢板及其制造方法
CN100510143C (zh) * 2006-05-29 2009-07-08 株式会社神户制钢所 延伸凸缘性优异的高强度钢板
JP5167487B2 (ja) * 2008-02-19 2013-03-21 Ｊｆｅスチール株式会社 延性に優れる高強度鋼板およびその製造方法
JP2010065272A (ja) * 2008-09-10 2010-03-25 Jfe Steel Corp 高強度鋼板およびその製造方法
JP5446885B2 (ja) * 2010-01-06 2014-03-19 新日鐵住金株式会社 冷延鋼板の製造方法
RU2563397C2 (ru) * 2011-07-06 2015-09-20 Ниппон Стил Энд Сумитомо Метал Корпорейшн Способ получения холоднокатаного стального листа
BR112014000074A2 (pt) * 2011-07-06 2017-02-14 Nippon Steel & Sumitomo Metal Corp "chapa de aço laminada a frio galvanizada por imersão a quente, e processo para produção da mesma"

Also Published As

Publication number Publication date
US20140241933A1 (en) 2014-08-28
MX2014000117A (es) 2014-07-09
EP2730672A4 (en) 2015-04-29
EP2730672A1 (en) 2014-05-14
KR20140030335A (ko) 2014-03-11
US9523139B2 (en) 2016-12-20
ES2665318T3 (es) 2018-04-25
RU2560479C1 (ru) 2015-08-20
IN2014DN00268A (pt) 2015-06-05
CA2841061A1 (en) 2013-01-10
KR101597058B1 (ko) 2016-02-23
WO2013005618A1 (ja) 2013-01-10
EP2730672B1 (en) 2018-02-14
PL2730672T3 (pl) 2018-07-31
CA2841061C (en) 2016-04-12
MX356410B (es) 2018-05-24
CN103781932A (zh) 2014-05-07
CN103781932B (zh) 2016-05-25
RU2014104025A (ru) 2015-08-20

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