EP0969112A4 - Dual-phase high-strength steel sheet having excellent dynamic deformation properties and process for preparing the same - Google Patents

Dual-phase high-strength steel sheet having excellent dynamic deformation properties and process for preparing the same

Info

Publication number
EP0969112A4
EP0969112A4 EP98907247A EP98907247A EP0969112A4 EP 0969112 A4 EP0969112 A4 EP 0969112A4 EP 98907247 A EP98907247 A EP 98907247A EP 98907247 A EP98907247 A EP 98907247A EP 0969112 A4 EP0969112 A4 EP 0969112A4
Authority
EP
European Patent Office
Prior art keywords
dual
preparing
steel sheet
same
strength steel
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
EP98907247A
Other languages
German (de)
French (fr)
Other versions
EP0969112B1 (en
EP0969112A1 (en
EP0969112B2 (en
Inventor
Akihiro Uenishi
Manabu Takahashi
Yukihisa Kuriyama
Yasuharu Sakuma
Osamu Kawano
Junichi Wakita
Hidesato Mabuchi
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.)
Nippon Steel Corp
Original Assignee
Nippon 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27524972&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0969112(A4) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP19029797A external-priority patent/JP3530347B2/en
Priority claimed from JP22300897A external-priority patent/JP3936440B2/en
Priority claimed from JP25893897A external-priority patent/JP3839928B2/en
Priority to EP10181225.3A priority Critical patent/EP2314729B2/en
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP0969112A1 publication Critical patent/EP0969112A1/en
Publication of EP0969112A4 publication Critical patent/EP0969112A4/en
Publication of EP0969112B1 publication Critical patent/EP0969112B1/en
Publication of EP0969112B2 publication Critical patent/EP0969112B2/en
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • 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
    • 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
    • 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
    • C22C38/04—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
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/022—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by heating
    • C23C2/0224—Two or more thermal pretreatments
    • 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
    • C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
    • C23C2/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
    • C23C2/024—Pretreatment of the material to be coated, e.g. for coating on selected surface areas by cleaning or etching
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
EP98907247.5A 1997-03-17 1998-03-16 A method of producing dual-phase high-strength steel sheets having high impact energy absorption properties Expired - Lifetime EP0969112B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10181225.3A EP2314729B2 (en) 1997-03-17 1998-03-16 Dual-phase type high-strength steel sheets having high impact energy absorption properties

Applications Claiming Priority (11)

Application Number Priority Date Filing Date Title
JP8243497 1997-03-17
JP8243497 1997-03-17
JP19029997 1997-07-15
JP19029797A JP3530347B2 (en) 1997-07-15 1997-07-15 How to select a high-strength steel sheet with excellent dynamic deformation characteristics
JP19029997 1997-07-15
JP19029797 1997-07-15
JP22300897 1997-08-06
JP22300897A JP3936440B2 (en) 1997-08-06 1997-08-06 High-strength steel sheet for automobiles with excellent collision safety and formability and its manufacturing method
JP25893897A JP3839928B2 (en) 1997-07-15 1997-09-24 Dual phase type high strength steel plate with excellent dynamic deformation characteristics
JP25893897 1997-09-24
PCT/JP1998/001101 WO1998041664A1 (en) 1997-03-17 1998-03-16 Dual-phase high-strength steel sheet having excellent dynamic deformation properties and process for preparing the same

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP10181225.3A Division EP2314729B2 (en) 1997-03-17 1998-03-16 Dual-phase type high-strength steel sheets having high impact energy absorption properties
EP10181225.3A Division-Into EP2314729B2 (en) 1997-03-17 1998-03-16 Dual-phase type high-strength steel sheets having high impact energy absorption properties
EP10181225.3 Division-Into 2010-09-28

Publications (4)

Publication Number Publication Date
EP0969112A1 EP0969112A1 (en) 2000-01-05
EP0969112A4 true EP0969112A4 (en) 2003-05-21
EP0969112B1 EP0969112B1 (en) 2011-08-17
EP0969112B2 EP0969112B2 (en) 2017-03-08

Family

ID=27524972

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10181225.3A Expired - Lifetime EP2314729B2 (en) 1997-03-17 1998-03-16 Dual-phase type high-strength steel sheets having high impact energy absorption properties
EP98907247.5A Expired - Lifetime EP0969112B2 (en) 1997-03-17 1998-03-16 A method of producing dual-phase high-strength steel sheets having high impact energy absorption properties

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10181225.3A Expired - Lifetime EP2314729B2 (en) 1997-03-17 1998-03-16 Dual-phase type high-strength steel sheets having high impact energy absorption properties

Country Status (7)

Country Link
EP (2) EP2314729B2 (en)
KR (1) KR100334949B1 (en)
CN (1) CN1080321C (en)
AU (1) AU717294B2 (en)
CA (1) CA2283924C (en)
TW (1) TW426742B (en)
WO (1) WO1998041664A1 (en)

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JP3039862B1 (en) * 1998-11-10 2000-05-08 川崎製鉄株式会社 Hot-rolled steel sheet for processing with ultra-fine grains
JP4369545B2 (en) * 1998-11-30 2009-11-25 新日本製鐵株式会社 Ferritic sheet steel with excellent strain rate dependency and automobile using the same
EP1069198A4 (en) * 1999-01-28 2002-02-06 Sumitomo Metal Ind Machine structural steel product
CA2297291C (en) * 1999-02-09 2008-08-05 Kawasaki Steel Corporation High tensile strength hot-rolled steel sheet and method of producing the same
DE19936151A1 (en) * 1999-07-31 2001-02-08 Thyssenkrupp Stahl Ag High-strength steel strip or sheet and process for its manufacture
EP1227167B1 (en) * 2000-01-24 2006-01-18 JFE Steel Corporation Hot dip zinc plated steel sheet and method for producing the same
EP1493832B1 (en) * 2000-02-23 2006-11-22 JFE Steel Corporation High tensile strength hot-rolled steel sheet having superior strain aging hardenability and method for producing the same
AU780588B2 (en) * 2000-04-07 2005-04-07 Jfe Steel Corporation Hot rolled steel plate, cold rolled steel plate and hot dip galvanized steel plate being excellent in strain aging hardening characteristics, and method for their production
US6589369B2 (en) * 2000-04-21 2003-07-08 Nippon Steel Corporation High fatigue strength steel sheet excellent in burring workability and method for producing the same
US7591917B2 (en) * 2000-10-02 2009-09-22 Nucor Corporation Method of producing steel strip
TW520398B (en) * 2000-11-28 2003-02-11 Kawasaki Steel Co Composite structure type high tensile strength steel plate, plated plate of composite structure type high tensile strength steel and method for their production
JP3927384B2 (en) * 2001-02-23 2007-06-06 新日本製鐵株式会社 Thin steel sheet for automobiles with excellent notch fatigue strength and method for producing the same
FR2833617B1 (en) * 2001-12-14 2004-08-20 Usinor METHOD FOR MANUFACTURING VERY HIGH STRENGTH COLD ROLLED SHEET OF MICRO-ALLOY DUAL STEEL
FR2834722B1 (en) 2002-01-14 2004-12-24 Usinor MANUFACTURING PROCESS OF A COPPER-RICH CARBON STEEL STEEL PRODUCT, AND THUS OBTAINED STEEL PRODUCT
DE50205631D1 (en) * 2002-09-11 2006-04-06 Thyssenkrupp Stahl Ag Ferritic / martensitic steel with high strength and very fine structure
US7780797B2 (en) 2002-12-26 2010-08-24 Nippon Steel Corporation High strength thin steel excellent in hole expansibility, ductility and chemical treatment characteristics
JP4180909B2 (en) * 2002-12-26 2008-11-12 新日本製鐵株式会社 High-strength hot-rolled steel sheet excellent in hole expansibility, ductility and chemical conversion treatment, and method for producing the same
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FR2855184B1 (en) * 2003-05-19 2006-05-19 Usinor COLD LAMINATED, ALUMINATED, HIGH STRENGTH, DUAL PHASE STEEL FOR TELEVISION ANTI-IMPLOSION BELT, AND METHOD FOR MANUFACTURING THE SAME
DE10327383C5 (en) * 2003-06-18 2013-10-17 Aceria Compacta De Bizkaia S.A. Plant for the production of hot strip with dual phase structure
US7442268B2 (en) 2004-11-24 2008-10-28 Nucor Corporation Method of manufacturing cold rolled dual-phase steel sheet
US8337643B2 (en) 2004-11-24 2012-12-25 Nucor Corporation Hot rolled dual phase steel sheet
US7959747B2 (en) 2004-11-24 2011-06-14 Nucor Corporation Method of making cold rolled dual phase steel sheet
US11155902B2 (en) 2006-09-27 2021-10-26 Nucor Corporation High strength, hot dip coated, dual phase, steel sheet and method of manufacturing same
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US20080178972A1 (en) * 2006-10-18 2008-07-31 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd) High strength steel sheet and method for producing the same
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JP7235621B2 (en) * 2019-08-27 2023-03-08 株式会社神戸製鋼所 Steel plate for low-strength hot stamping, hot stamped parts, and method for manufacturing hot stamped parts
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EP0719868A1 (en) * 1994-12-26 1996-07-03 Kawasaki Steel Corporation Steel sheet for automobiles having excellent impact resistance and method of manufacturing the steel sheet
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Title
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PATENT ABSTRACTS OF JAPAN vol. 1997, no. 04 30 April 1997 (1997-04-30) *

Also Published As

Publication number Publication date
EP2314729A1 (en) 2011-04-27
CN1080321C (en) 2002-03-06
CA2283924C (en) 2006-11-28
EP0969112B1 (en) 2011-08-17
KR100334949B1 (en) 2002-05-04
EP0969112A1 (en) 2000-01-05
EP2314729B1 (en) 2012-02-08
TW426742B (en) 2001-03-21
CA2283924A1 (en) 1998-09-24
WO1998041664A1 (en) 1998-09-24
CN1251140A (en) 2000-04-19
KR20000076372A (en) 2000-12-26
AU717294B2 (en) 2000-03-23
AU6311898A (en) 1998-10-12
EP2314729B2 (en) 2017-03-08
EP0969112B2 (en) 2017-03-08

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