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1. 发明公开

EP3164520A2 METHOD FOR PRODUCING A HIGH STRENGTH STEEL SHEET HAVING IMPROVED STRENGTH, DUCTILITY AND FORMABILITY 有权
标题翻译：用于生产具有改进的强度，延展性和可变形的高强度钢板
公开(公告)号：EP3164520A2
公开(公告)日：2017-05-10
申请号：EP15750813.6
申请日：2015-07-03
申请人： Arcelormittal
发明人： MOHANTY, Rashmi Ranjan , JUN, Hyun Jo , FAN, Dongwei
IPC分类号： C21D8/02 , C21D9/46 , C21D9/48 , C21D1/18 , C22C38/02 , C22C38/38
摘要： A method for producing a high strength steel sheet having a yield strength YS of at least 850 MPa, a tensile strength TS of at least 1180 MPa, a total elongation of at least 14% and a hole expansion ratio HER of at least 30%. The chemical composition of the steel contains: 0.15%≦C≦0.25%, 1.2%≦Si≦1.8%, 2%≦Mn≦2.4%, 0.1%≦Cr≦0.25%, Nb≦0.05%, Ti≦0.05%, Al≦0.50%, the remainder being Fe and unavoidable impurities. The sheet is annealed at an annealing temperature TA higher than Ac3 but less than 1000° C. for more than 30 s, by cooling it to a quenching temperature QT between 275° C. and 325° C., at a cooling speed sufficient to have, just after quenching, a structure consisting of austenite and at least 50% of martensite, the austenite content en.) being such that the final structure can contain between 3% and 15% of residual austenite and between 85 and 97% of the sum of martensite and bainite, without ferrite, heated to a partitioning temperature PT between 420° C. and 470° C. and maintained at this temperature for time between 50 s and 150 s and cooled to the room temperature.
摘要翻译：一种生产具有至少为850MPa的屈服强度YS的高强度钢板的制造方法，在至少1180的拉伸强度TS MPa时，至少14％的总延伸率和至少30％的扩孔率HER。钢的化学组成中含有：0.15％≦Ç≦0.25％，1.2％≦的Si≦1.8％，2％≦的Mn≦2.4％，0.1％≦的Cr≦0.25％以下，Nb≦0.05％以下，Ti≦0.05％，人≦00：50％，其余为Fe和不可避免的杂质。片材在被退火在退火温度TA高于Ac3但小于1000℃超过30秒时，通过将其冷却至275℃和325℃之间的淬火温度QT，在冷却速度足够的至已，只是淬火，一个结构奥氏体由...组成和马氏体的至少50％后，奥氏体含量峰）被检查并最终结构可以在3％和残留奥氏体的15％之间和85之间97的％含有马氏体和贝氏体的总和，不包含铁，加热至420℃和470℃之间的温度划分PT，并保持在该温度下50秒和150秒之间的时间，并冷却至室温。

2. 发明公开

EP4114994A1 HIGH STRENGTH COLD ROLLED AND GALVANNEALED STEEL SHEET AND MANUFACTURING PROCESS THEREOF 有权
公开(公告)号：EP4114994A1
公开(公告)日：2023-01-11
申请号：EP21703775.3
申请日：2021-02-08
申请人： ArcelorMittal
发明人： INACIO DA ROSA, Gregory , ZHAO, Lijia , FAN, Dongwei , DRILLET, Josée
IPC分类号： C21D8/02 , C21D9/46 , C22C38/02 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38

3. 发明授权

EP3164520B1 METHOD FOR PRODUCING A HIGH STRENGTH STEEL SHEET HAVING IMPROVED STRENGTH, DUCTILITY AND FORMABILITY 有权
公开(公告)号：EP3164520B1
公开(公告)日：2020-03-11
申请号：EP15750813.6
申请日：2015-07-03
申请人： Arcelormittal
发明人： MOHANTY, Rashmi Ranjan , JUN, Hyun Jo , FAN, Dongwei
IPC分类号： C21D1/19 , C21D1/25 , C21D8/02 , C21D9/46 , C21D9/48 , C21D6/00 , C21D8/04 , C22C38/02 , C22C38/06 , C22C38/26 , C22C38/28 , C22C38/34 , C22C38/38

4. 发明授权

EP3164512B1 METHOD FOR PRODUCING A HIGH STRENGTH COATED STEEL SHEET HAVING IMPROVED STRENGTH AND DUCTILITY AND OBTAINED SHEET 有权
公开(公告)号：EP3164512B1
公开(公告)日：2018-09-12
申请号：EP15750461.4
申请日：2015-07-03
申请人： Arcelormittal
发明人： FAN, Dongwei , JUN, Hyun Jo , MOHANTY, Rashmi Ranjan
IPC分类号： C21D1/19 , C21D8/02 , C21D9/46 , C21D1/18
CPC分类号： C21D9/46 , B32B15/013 , C21D1/19 , C21D6/005 , C21D6/008 , C21D8/0247 , C21D8/0447 , C21D8/0484 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40
摘要： A method for producing a high strength coated steel sheet having a yield strength YS of at least 800 MPa, a tensile strength TS of >1180 MPa, a total elongation >14% and a hole expansion ratio HER>30%. The steel contains in weight %: 0.13%≦C≦0.22%, 1.2%≦Si≦1.8%, 1.8%≦Mn≦2.2%, 0.10%≦Mo≦0.20%, Nb≦0.05%, Al≦0.5%, the remainder being Fe and unavoidable impurities. The sheet is annealed at a temperature TA higher than Ac3 but less than 1000° C. for more than 30 s, then quenched by cooling temperature QT between 325° C. and 375° C., at a cooling speed sufficient to obtain a structure consisting of austenite and at least 60% of martensite, the austenite content being such that the fmal structure can contain between 3% and 15% of residual austenite and between 85 and 97% of the sum of martensite and bainite, without ferrite, then heated to a partitioning temperature PT between 430° C. and 480° C. and maintained at this temperature for a partitioning time Pt between 10 s and 90 s, then hot dip coated cooled to the room temperature. Coated sheet obtained.

5. 发明公开

EP3164519A2 METHOD FOR PRODUCING A HIGH STRENGTH COATED STEEL SHEET HAVING IMPROVED STRENGTH, FORMABILITY AND OBTAINED SHEET 有权
标题翻译：用于生产高强度钢板强度提高涂层纸，并收集变形性SHEET
公开(公告)号：EP3164519A2
公开(公告)日：2017-05-10
申请号：EP15750812.8
申请日：2015-07-03
申请人： Arcelormittal
发明人： FAN, Dongwei , JUN, Hyun Jo , MOHANTY, Rashmi Ranjan , VENKATASURYA, Pavan K. C.
IPC分类号： C21D8/02 , C21D9/46 , C21D1/18 , C22C38/02 , C22C38/04
CPC分类号： C21D9/46 , C21D1/18 , C21D6/005 , C21D6/008 , C21D8/02 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0247 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C23C2/06 , C23C2/285 , C23C2/40
摘要： A method for producing a high strength coated steel sheet having an improved ductility and an improved formability, the chemical composition of the steel containing: 0.13% ≤ C ≤ 0.22%, 1.9% ≤ Si ≤ 2.3%, 2.4% ≤ Mn ≤ 3%, Al ≤0.5%, Ti
摘要翻译：一种生产具有改进的延性和改善的加工性的高强度的镀敷钢板的方法，该钢含有的化学成分：0.13％≦Ç≦0.22％〜1.9％≦的Si≦2.3％，2.4％≦的Mn≦3％的Al 0.5≦％以下，Ti <0.05％以下，Nb <0.05％，其余为Fe和不可避免的杂质。片材在温度TA高于Ac3但小于1000℃下超过30秒的时间，通过冷却至200℃和280℃之间的淬火温度QT，以便获得一个结构淬火退火由奥氏体和马氏体的至少50％的，被检查的奥氏体含量并最终结构可以在3％和残留奥氏体的贝氏体和85％，马氏体的总和与97％之间15％之间包含，不包含铁，加热高达430℃和490℃之间的分配温度PT，并保持在该温度下进行10秒和Pt 100秒之间的时间，热浸镀，并冷却至室温。

6. 发明公开

EP3164512A1 METHOD FOR PRODUCING A HIGH STRENGTH COATED STEEL SHEET HAVING IMPROVED STRENGTH AND DUCTILITY AND OBTAINED SHEET 有权
标题翻译：工艺生产具有提高强度和变形能力生产的表涂在高强度钢板
公开(公告)号：EP3164512A1
公开(公告)日：2017-05-10
申请号：EP15750461.4
申请日：2015-07-03
申请人： Arcelormittal
发明人： FAN, Dongwei , JUN, Hyun Jo , MOHANTY, Rashmi Ranjan
IPC分类号： C21D1/19 , C21D8/02 , C21D9/46 , C21D1/18
CPC分类号： C21D9/46 , B32B15/013 , C21D1/19 , C21D6/005 , C21D6/008 , C21D8/0247 , C21D8/0447 , C21D8/0484 , C21D2211/001 , C21D2211/002 , C21D2211/008 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C23C2/02 , C23C2/06 , C23C2/28 , C23C2/40
摘要： A method for producing a high strength coated steel sheet having a yield strength YS of at least 800 MPa, a tensile strength TS of >1180 MPa, a total elongation >14% and a hole expansion ratio HER>30%. The steel contains in weight %: 0.13%≦C≦0.22%, 1.2%≦Si≦1.8%, 1.8%≦Mn≦2.2%, 0.10%≦Mo≦0.20%, Nb≦0.05%, Al≦0.5%, the remainder being Fe and unavoidable impurities. The sheet is annealed at a temperature TA higher than Ac3 but less than 1000° C. for more than 30 s, then quenched by cooling temperature QT between 325° C. and 375° C., at a cooling speed sufficient to obtain a structure consisting of austenite and at least 60% of martensite, the austenite content being such that the fmal structure can contain between 3% and 15% of residual austenite and between 85 and 97% of the sum of martensite and bainite, without ferrite, then heated to a partitioning temperature PT between 430° C. and 480° C. and maintained at this temperature for a partitioning time Pt between 10 s and 90 s, then hot dip coated cooled to the room temperature. Coated sheet obtained.
摘要翻译：一种生产具有至少为800MPa的屈服强度YS的高强度热镀钢板的方法，拉伸强度TS> 1180兆帕，总伸长得到> 14％和膨胀比HER> 30％。钢中含有以重量％计：0.13％≦Ç≦0.22％〜1.2％≦的Si≦1.8％，1.8％≦锰≦2.2％，0.10％至≤沫≦0.20％，Nb的≦0.05％以下，Al≦0.5％，则其余为Fe和不可避免的杂质。片材的温度TA高于Ac3但小于1000℃下超过30秒退火，然后通过冷却325℃和375℃之间的温度QT，在冷却速度足以获得结构淬灭由奥氏体和马氏体的至少60％的，被检查的奥氏体含量做了FMAL结构可以在3％和残留奥氏体以及85和马氏体和贝氏体的总和的97％之间15％之间包含，不包含铁，然后加热至430℃和480℃之间的分配温度PT，并保持在该温度下一段时间的10秒和90秒之间分隔的Pt，然后涂上热浸冷却至室温。涂覆片材得到。

7. 发明公开

EP3152336A1 HIGH STRENGTH MULTIPHASE STEEL, PRODUCTION METHOD AND USE 有权
标题翻译：赫伯斯特MEHRPHASENSTAHL，HERSTELLUNGSVERFAHREN UND VERWENDUNG
公开(公告)号：EP3152336A1
公开(公告)日：2017-04-12
申请号：EP15734438.3
申请日：2015-06-03
申请人： Arcelormittal
发明人： FAN, Dongwei , JUN, Hyun Jo , ROTOLE, John A.
IPC分类号： C21D8/02 , C23C2/02 , C21D9/46 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , B32B15/01 , C23C2/06
CPC分类号： C21D9/46 , B32B15/013 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0263 , C21D8/0273 , C21D8/0278 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C23C2/02 , C23C2/06 , C23C2/12 , C23C2/28 , C23C2/40
摘要： The invention deals with a cold rolled and hot dip steel sheet, with a tensile strength of at least 980 MPa, with yield strength above or equal to 500 MPa, with total elongation above or equal to 8%, the composition consisting by weight percent: 0.05
摘要翻译：本发明涉及一种抗拉强度至少为980MPa，屈服强度高于或等于500MPa，总伸长率高于或等于8％的冷轧和热浸钢板，其组成由重量百分比组成： 0.05

8. 发明公开

EP4176092A1 HEAT TREATED COLD ROLLED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF 审中-实审
公开(公告)号：EP4176092A1
公开(公告)日：2023-05-10
申请号：EP21736390.2
申请日：2021-07-01
申请人： ArcelorMittal
发明人： FAN, Dongwei , GIRINA, Olga
IPC分类号： C21D8/02 , C22C38/00 , C22C38/02 , C22C38/06 , C22C38/22 , C22C38/26 , C22C38/28 , C22C38/32 , C22C38/38 , C21D6/02 , C21D1/20 , C23C2/06 , C23C2/02

9. 发明公开

EP3976841A1 COLD ROLLED AND COATED STEEL SHEET AND A METHOD OF MANUFACTURING THEREOF 审中-实审
公开(公告)号：EP3976841A1
公开(公告)日：2022-04-06
申请号：EP20725951.6
申请日：2020-05-12
申请人： ArcelorMittal
发明人： JUN, Hyun Jo , POTTORE, Narayan , FAN, Dongwei , CHEN, Xiang (Frank) , YAKUBOVSKY, Oleg
IPC分类号： C21D8/00 , C21D8/02 , C21D8/04 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/00

10. 发明公开

EP3831965A1 METHOD FOR PRODUCING A HIGH STRENGTH COATED STEEL SHEET HAVING IMPROVED STRENGTH, DUCTILITY AND FORMABILITY 审中-实审
公开(公告)号：EP3831965A1
公开(公告)日：2021-06-09
申请号：EP21150965.8
申请日：2015-07-03
申请人： ArcelorMittal
发明人： MOHANTY, Rashmi Ranjan , JUN, Hyun Jo , FAN, Dongwei
IPC分类号： C21D1/19 , C21D1/26 , C21D8/04 , C21D9/48 , C22C38/38 , C22C38/02 , C22C38/04 , C22C38/06 , C23C2/02 , C23C2/06 , C23C2/40 , B32B15/01
摘要： A method for producing a high strength coated steel sheet having a yield stress YS > 800 MPa, a tensile strength TS > 1180 MPa, and improved formability and ductility. The steel contains: 15% ≤ C ≤ 0.25%, 1.2% ≤ Si ≤ 1.8%, 2% ≤ Mn ≤ 2.4%, 0.1% ≤ Cr ≤ 0.25%, Al ≤ 0.5%, the remainder being Fe and unavoidable impurities. The sheet is annealed at a temperature higher than Ac3 and lower than 1000°C for a time of more than 30 s, then quenched by cooling it to a quenching temperature QT between 250°C and 350°C, to obtain a structure consisting of at least 60 % of martensite and a sufficient austenite content such that the final structure contains 3 % to 15% of residual austenite and 85 % to 97% of martensite and bainite without ferrite, then heated to a partitioning temperature PT between 430°C and 480°C and maintained at this temperature for a partitioning time Pt between 10 s and 90 s, then hot dip coated and cooled to the room temperature. Obtained coated sheet.

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