EP1398390A1 - Acier ferritique-martensitique possédant une resistance élevée ayant une fine microstructure - Google Patents

Acier ferritique-martensitique possédant une resistance élevée ayant une fine microstructure Download PDF

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Publication number
EP1398390A1
EP1398390A1 EP02020294A EP02020294A EP1398390A1 EP 1398390 A1 EP1398390 A1 EP 1398390A1 EP 02020294 A EP02020294 A EP 02020294A EP 02020294 A EP02020294 A EP 02020294A EP 1398390 A1 EP1398390 A1 EP 1398390A1
Authority
EP
European Patent Office
Prior art keywords
hot
hot strip
cooling
temperature
tensile strength
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
EP02020294A
Other languages
German (de)
English (en)
Other versions
EP1398390B1 (fr
Inventor
Andreas Nuss
Thomas Dr.-Ing. Heller
Bernhard Dr.-Ing. Engl
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.)
ThyssenKrupp Steel Europe AG
Original Assignee
ThyssenKrupp Stahl AG
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=31725389&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1398390(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ThyssenKrupp Stahl AG filed Critical ThyssenKrupp Stahl AG
Priority to AT02020294T priority Critical patent/ATE316157T1/de
Priority to EP02020294A priority patent/EP1398390B1/fr
Priority to DE50205631T priority patent/DE50205631D1/de
Priority to ES02020294T priority patent/ES2256378T3/es
Publication of EP1398390A1 publication Critical patent/EP1398390A1/fr
Application granted granted Critical
Publication of EP1398390B1 publication Critical patent/EP1398390B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • 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
    • 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
    • C21D2201/00—Treatment for obtaining particular effects
    • 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

Definitions

  • a hot strip is obtained, its structure essentially completely martensitic / ferritic and is free of pearlite.
  • the hot strip shows a structure whose ferrite grains are ultra-fine. This is due to the interaction of the invention given composition of the processed steel, the comparatively high hot rolling end temperature of 750 ° C to 900 ° C and the cooling after the hot rolling reached a low reel temperature, the upper limit according to the invention set at 250 ° C and from this Upper limit can reach room temperature.
  • Figures 1 and 2 show micrographs from four to four different variants of the invention Process produced hot strips.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Catalysts (AREA)
EP02020294A 2002-09-11 2002-09-11 Acier ferritique-martensitique possédant une resistance élevée ayant une fine microstructure Revoked EP1398390B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AT02020294T ATE316157T1 (de) 2002-09-11 2002-09-11 Ferritisch/martensitischer stahl mit hoher festigkeit und sehr feinem gefüge
EP02020294A EP1398390B1 (fr) 2002-09-11 2002-09-11 Acier ferritique-martensitique possédant une resistance élevée ayant une fine microstructure
DE50205631T DE50205631D1 (de) 2002-09-11 2002-09-11 Ferritisch/martensitischer Stahl mit hoher Festigkeit und sehr feinem Gefüge
ES02020294T ES2256378T3 (es) 2002-09-11 2002-09-11 Acero ferritico/martensitico altamente resistente con estructura muy fina.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02020294A EP1398390B1 (fr) 2002-09-11 2002-09-11 Acier ferritique-martensitique possédant une resistance élevée ayant une fine microstructure

Publications (2)

Publication Number Publication Date
EP1398390A1 true EP1398390A1 (fr) 2004-03-17
EP1398390B1 EP1398390B1 (fr) 2006-01-18

Family

ID=31725389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02020294A Revoked EP1398390B1 (fr) 2002-09-11 2002-09-11 Acier ferritique-martensitique possédant une resistance élevée ayant une fine microstructure

Country Status (4)

Country Link
EP (1) EP1398390B1 (fr)
AT (1) ATE316157T1 (fr)
DE (1) DE50205631D1 (fr)
ES (1) ES2256378T3 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1559797A1 (fr) * 2004-01-29 2005-08-03 JFE Steel Corporation Tôle d'acier à haute résistance et procédé pour sa fabrication
EP1870483A1 (fr) * 2005-03-31 2007-12-26 JFE Steel Corporation Tole d'acier laminee a chaud, procede de production de ladite tole et article moule forme a partir de tole d'acier laminee a chaud
EP1918403A1 (fr) * 2006-10-30 2008-05-07 ThyssenKrupp Steel AG Procédé de fabrication de produits plats en acier à partir d'un acier formant une structure marténsitique
EP1918405A1 (fr) * 2006-10-30 2008-05-07 ThyssenKrupp Steel AG Procédé pour la fabrication de produits plats à partir d'un acier à plusieurs phases allié en silice
DE102006053819A1 (de) * 2006-11-14 2008-05-15 Thyssenkrupp Steel Ag Verfahren zum Herstellen eines Bauteil durch Warmpresshärten und hochfestes Bauteil mit verbesserter Bruchdehnung
WO2011120550A1 (fr) * 2010-03-29 2011-10-06 Arcelormittal Investigación Y Desarrollo Sl Produit d'acier possédant des caractéristiques de tenue aux intempéries améliorées dans un environnement salin
CN103667651A (zh) * 2013-11-28 2014-03-26 安徽银力铸造有限公司 一种汽车用高强度热轧钢的制备方法
EP2565288A4 (fr) * 2010-04-28 2015-04-08 Nippon Steel & Sumitomo Metal Corp Tôle d'acier à deux phases laminée à chaud à une excellente résistance dynamique, et son procédé de production
US9994942B2 (en) 2012-08-21 2018-06-12 Nippon Steel & Sumitomo Metal Corporation Steel material
US11225697B2 (en) 2014-12-19 2022-01-18 Nucor Corporation Hot rolled light-gauge martensitic steel sheet and method for making the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101008066B (zh) * 2006-01-27 2010-05-12 宝山钢铁股份有限公司 抗拉强度高于1000MPa的热轧马氏体钢板及其制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466842A (en) * 1982-04-03 1984-08-21 Nippon Steel Corporation Ferritic steel having ultra-fine grains and a method for producing the same
JPS6134116A (ja) * 1984-07-24 1986-02-18 Sumitomo Metal Ind Ltd 強靭性熱間圧延コイルの製造法
EP0945522A1 (fr) * 1997-09-11 1999-09-29 Kawasaki Steel Corporation Plaque d'acier laminee a chaud contenant des particules hyperfines, son procede de fabrication et procede de fabrication de plaques d'acier laminees a froid
EP0952235A1 (fr) * 1996-11-28 1999-10-27 Nippon Steel Corporation Plaque d'acier a haute resistance mecanique dotee d'une forte resistance a la deformation dynamique et procede de fabrication correspondant
EP0969112A1 (fr) * 1997-03-17 2000-01-05 Nippon Steel Corporation Tole d'acier biphase a haute resistance ayant d'excellentes proprietes de deformation dynamique et son procede de preparation
DE19911287C1 (de) * 1999-03-13 2000-08-31 Thyssenkrupp Stahl Ag Verfahren zum Erzeugen eines Warmbandes

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4466842A (en) * 1982-04-03 1984-08-21 Nippon Steel Corporation Ferritic steel having ultra-fine grains and a method for producing the same
JPS6134116A (ja) * 1984-07-24 1986-02-18 Sumitomo Metal Ind Ltd 強靭性熱間圧延コイルの製造法
EP0952235A1 (fr) * 1996-11-28 1999-10-27 Nippon Steel Corporation Plaque d'acier a haute resistance mecanique dotee d'une forte resistance a la deformation dynamique et procede de fabrication correspondant
EP0969112A1 (fr) * 1997-03-17 2000-01-05 Nippon Steel Corporation Tole d'acier biphase a haute resistance ayant d'excellentes proprietes de deformation dynamique et son procede de preparation
EP0945522A1 (fr) * 1997-09-11 1999-09-29 Kawasaki Steel Corporation Plaque d'acier laminee a chaud contenant des particules hyperfines, son procede de fabrication et procede de fabrication de plaques d'acier laminees a froid
DE19911287C1 (de) * 1999-03-13 2000-08-31 Thyssenkrupp Stahl Ag Verfahren zum Erzeugen eines Warmbandes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 185 (C - 357) 27 June 1986 (1986-06-27) *

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1559797A1 (fr) * 2004-01-29 2005-08-03 JFE Steel Corporation Tôle d'acier à haute résistance et procédé pour sa fabrication
EP1870483A4 (fr) * 2005-03-31 2009-08-26 Jfe Steel Corp Tole d'acier laminee a chaud, procede de production de ladite tole et article moule forme a partir de tole d'acier laminee a chaud
EP1870483A1 (fr) * 2005-03-31 2007-12-26 JFE Steel Corporation Tole d'acier laminee a chaud, procede de production de ladite tole et article moule forme a partir de tole d'acier laminee a chaud
US8828154B2 (en) * 2005-03-31 2014-09-09 Jfe Steel Corporation Hot-rolled steel sheet, method for making the same, and worked body of hot-rolled steel sheet
CN101528967B (zh) * 2006-10-30 2011-06-15 蒂森克虏伯钢铁股份公司 由形成马氏体显微组织的钢制备扁钢产品的方法
EP1918403A1 (fr) * 2006-10-30 2008-05-07 ThyssenKrupp Steel AG Procédé de fabrication de produits plats en acier à partir d'un acier formant une structure marténsitique
WO2008052918A1 (fr) * 2006-10-30 2008-05-08 Thyssenkrupp Steel Ag Procédé de fabrication de produits plats en acier à partir d'un acier formant une structure martensitique
WO2008052921A1 (fr) * 2006-10-30 2008-05-08 Thyssenkrupp Steel Ag Procédé de fabrication de produits plats en acier à partir d'un acier multiphase allié à du silicium
JP2010508434A (ja) * 2006-10-30 2010-03-18 ティッセンクルップ スチール アクチェンゲゼルシャフト マルテンサイトミクロ組織を形成する鋼からフラット鋼生成物を製造する方法
JP2010508437A (ja) * 2006-10-30 2010-03-18 ティッセンクルップ スチール アクチェンゲゼルシャフト ケイ素合金化多相鋼からフラット鋼生成物を製造する方法
EP1918405A1 (fr) * 2006-10-30 2008-05-07 ThyssenKrupp Steel AG Procédé pour la fabrication de produits plats à partir d'un acier à plusieurs phases allié en silice
DE102006053819A1 (de) * 2006-11-14 2008-05-15 Thyssenkrupp Steel Ag Verfahren zum Herstellen eines Bauteil durch Warmpresshärten und hochfestes Bauteil mit verbesserter Bruchdehnung
WO2011120550A1 (fr) * 2010-03-29 2011-10-06 Arcelormittal Investigación Y Desarrollo Sl Produit d'acier possédant des caractéristiques de tenue aux intempéries améliorées dans un environnement salin
CN102884214A (zh) * 2010-03-29 2013-01-16 安赛乐米塔尔研发有限公司 具有改善的含盐环境耐候性能的钢产品
CN102884214B (zh) * 2010-03-29 2015-09-09 安赛乐米塔尔研发有限公司 具有改善的含盐环境耐候性能的钢产品
EP2565288A4 (fr) * 2010-04-28 2015-04-08 Nippon Steel & Sumitomo Metal Corp Tôle d'acier à deux phases laminée à chaud à une excellente résistance dynamique, et son procédé de production
US10041158B2 (en) 2010-04-28 2018-08-07 Nippon Steel & Sumitomo Metal Corporation Multi-phase hot-rolled steel sheet having improved dynamic strength and a method for its manufacture
US9994942B2 (en) 2012-08-21 2018-06-12 Nippon Steel & Sumitomo Metal Corporation Steel material
CN103667651A (zh) * 2013-11-28 2014-03-26 安徽银力铸造有限公司 一种汽车用高强度热轧钢的制备方法
US11225697B2 (en) 2014-12-19 2022-01-18 Nucor Corporation Hot rolled light-gauge martensitic steel sheet and method for making the same

Also Published As

Publication number Publication date
DE50205631D1 (de) 2006-04-06
ES2256378T3 (es) 2006-07-16
EP1398390B1 (fr) 2006-01-18
ATE316157T1 (de) 2006-02-15

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