发明申请
- 专利标题： HIGH STRENGTH STEEL SHEET HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE
- 专利标题（中）： 具有优异耐腐蚀性能的高强度钢板
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申请号： US13375132申请日： 2010-05-28
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公开(公告)号： US20120132327A1公开(公告)日： 2012-05-31
- 发明人: Yoichi Mukai , Kouji Kasuya , Michiharu Nakaya , Michitaka Tsunezawa , Fumio Yuse , Junichiro Kinugasa , Sandra Traint , Andreas Pichler
- 申请人： Yoichi Mukai , Kouji Kasuya , Michiharu Nakaya , Michitaka Tsunezawa , Fumio Yuse , Junichiro Kinugasa , Sandra Traint , Andreas Pichler
- 申请人地址： AT Linz JP Kobe-shi, Hyogo
- 专利权人： VOESTALPINE STAHL GMBH,Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- 当前专利权人： VOESTALPINE STAHL GMBH,Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
- 当前专利权人地址： AT Linz JP Kobe-shi, Hyogo
- 优先权： JP2009-130924 20090529
- 国际申请： PCT/JP2010/003610 WO 20100528
- 主分类号： C21D6/00
- IPC分类号： C21D6/00 ; C22C38/04 ; C22C38/08 ; C22C38/12 ; C22C38/16 ; C22C38/00 ; C22C38/38
摘要：
Disclosed is a high strength steel sheet having excellent hydrogen embrittlement resistance. The steel sheet has a tensile strength of 1180 MPa or more, and satisfies the following conditions: with respect to an entire metallographic structure thereof, bainite, bainitic ferrite and tempered martensite account for 85 area % or more in total; retained austenite accounts for 1 area % or more; and fresh martensite accounts for 5 area % or less (including 0 area %).
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