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 PDFInfo
- 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
Links
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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)
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)
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)
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)
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 |
-
2002
- 2002-09-11 EP EP02020294A patent/EP1398390B1/fr not_active Revoked
- 2002-09-11 DE DE50205631T patent/DE50205631D1/de not_active Revoked
- 2002-09-11 AT AT02020294T patent/ATE316157T1/de active
- 2002-09-11 ES ES02020294T patent/ES2256378T3/es not_active Expired - Lifetime
Patent Citations (6)
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)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 010, no. 185 (C - 357) 27 June 1986 (1986-06-27) * |
Cited By (20)
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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