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1. 发明申请

US20120132327A1 HIGH STRENGTH STEEL SHEET HAVING EXCELLENT HYDROGEN EMBRITTLEMENT RESISTANCE 有权
标题翻译：具有优异耐腐蚀性能的高强度钢板
公开(公告)号：US20120132327A1
公开(公告)日：2012-05-31
申请号：US13375132
申请日：2010-05-28
申请人： Yoichi Mukai , Kouji Kasuya , Michiharu Nakaya , Michitaka Tsunezawa , Fumio Yuse , Junichiro Kinugasa , Sandra Traint , Andreas Pichler
发明人： Yoichi Mukai , Kouji Kasuya , Michiharu Nakaya , Michitaka Tsunezawa , Fumio Yuse , Junichiro Kinugasa , Sandra Traint , Andreas Pichler
IPC分类号： C21D6/00 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/16 , C22C38/00 , C22C38/38
CPC分类号： C21D9/46 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0252 , C21D2211/002 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16 , 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 %).
摘要翻译：公开了耐氢脆性优异的高强度钢板。钢板的拉伸强度为1180MPa以上，满足以下条件：相对于其整个金相组织，贝氏体，贝氏体铁素体和回火马氏体总计占85面积％以上。残余奥氏体占1面积％以上; 新鲜马氏体占5面积％以下（含0面积％）。

2. 发明授权

US09464337B2 High strength steel sheet having excellent hydrogen embrittlement resistance 有权
标题翻译：耐氢脆性优异的高强度钢板
公开(公告)号：US09464337B2
公开(公告)日：2016-10-11
申请号：US13375132
申请日：2010-05-28
申请人： Yoichi Mukai , Kouji Kasuya , Michiharu Nakaya , Michitaka Tsunezawa , Fumio Yuse , Junichiro Kinugasa , Sandra Traint , Andreas Pichler
发明人： Yoichi Mukai , Kouji Kasuya , Michiharu Nakaya , Michitaka Tsunezawa , Fumio Yuse , Junichiro Kinugasa , Sandra Traint , Andreas Pichler
IPC分类号： C21D6/00 , C22C38/04 , C22C38/08 , C22C38/12 , C22C38/16 , C22C38/00 , C22C38/38 , C21D9/46 , C21D8/02 , C22C38/02 , C22C38/06 , C22C38/14
CPC分类号： C21D9/46 , C21D8/0205 , C21D8/0226 , C21D8/0236 , C21D8/0252 , C21D2211/002 , C21D2211/005 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/12 , C22C38/14 , C22C38/16 , 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 %).
摘要翻译：公开了耐氢脆性优异的高强度钢板。钢板的拉伸强度为1180MPa以上，满足以下条件：相对于其整个金相组织，贝氏体，贝氏体铁素体和回火马氏体总计占85面积％以上。残余奥氏体占1面积％以上; 新鲜马氏体占5面积％以下（含0面积％）。

3. 发明申请

US20090238713A1 ULTRAHIGH-STRENGTH STEEL SHEET 有权
标题翻译：超强度钢板
公开(公告)号：US20090238713A1
公开(公告)日：2009-09-24
申请号：US12159400
申请日：2006-12-28
申请人： Junichiro Kinugasa , Fumio Yuse , Yoichi Mukai , Shinji Kozuma , Hiroshi Akamizu , Kouji Kasuya , Muneaki Ikeda , Koichi Sugimoto
发明人： Junichiro Kinugasa , Fumio Yuse , Yoichi Mukai , Shinji Kozuma , Hiroshi Akamizu , Kouji Kasuya , Muneaki Ikeda , Koichi Sugimoto
IPC分类号： C22C38/00 , C22C38/42 , C22C38/22 , C22C38/18 , C22C38/20 , C22C38/40 , C22C38/04
CPC分类号： C21D9/48 , C21D1/20 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/005 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50
摘要： The invention relates to an ultrahigh-strength thin steel sheet excellent in the hydrogen embrittlement resistance, the steel sheet including, by weight %, 0.10 to 0.60% of C, 1.0 to 3.0% of Si, 1.0 to 3.5% of Mn, 0.15% or less of P, 0.02% or less of S, 1.5% or less of Al, 0.003 to 2.0% of Cr, and a balance including iron and inevitable impurities; in which grains of residual austenite have an average axis ratio (major axis/minor axis) of 5 or more, the grains of the residual austenite have an average minor axis length of 1 μm or less, and the grains of the residual austenite have a nearest-neighbor distance between the grains of 1 μm or less.
摘要翻译：本发明涉及耐氢脆性优异的超高强度薄钢板，该钢板以重量％计，C：0.10〜0.60％，Si：1.0〜3.0％，Mn：1.0〜3.5％，Mn：0.15％以下的P，0.02％以下的S，1.5％以下的Al，0.003〜2.0％的Cr，余量包括铁和不可避免的杂质; 其中残余奥氏体的晶粒的平均轴比（长轴/短轴）为5以上，残留奥氏体的平均短轴长度为1μm以下，残留奥氏体的晶粒为 1个或更少的颗粒之间的最邻近距离。

4. 发明授权

US07887648B2 Ultrahigh-strength thin steel sheet 有权
标题翻译：超高强度薄钢板
公开(公告)号：US07887648B2
公开(公告)日：2011-02-15
申请号：US12159400
申请日：2006-12-28
申请人： Junichiro Kinugasa , Fumio Yuse , Yoichi Mukai , Shinji Kozuma , Hiroshi Akamizu , Kouji Kasuya , Muneaki Ikeda , Koichi Sugimoto
发明人： Junichiro Kinugasa , Fumio Yuse , Yoichi Mukai , Shinji Kozuma , Hiroshi Akamizu , Kouji Kasuya , Muneaki Ikeda , Koichi Sugimoto
IPC分类号： C22C38/32 , C22C38/28
CPC分类号： C21D9/48 , C21D1/20 , C21D2211/001 , C21D2211/002 , C21D2211/005 , C21D2211/008 , C22C38/005 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16 , C22C38/22 , C22C38/24 , C22C38/26 , C22C38/32 , C22C38/34 , C22C38/38 , C22C38/42 , C22C38/44 , C22C38/46 , C22C38/50
摘要： The invention relates to an ultrahigh-strength thin steel sheet excellent in the hydrogen embrittlement resistance, the steel sheet including, by weight %, 0.10 to 0.60% of C, 1.0 to 3.0% of Si, 1.0 to 3.5% of Mn, 0.15% or less of P, 0.02% or less of S, 1.5% or less of Al, 0.003 to 2.0% of Cr, and a balance including iron and inevitable impurities; in which grains of residual austenite have an average axis ratio (major axis/minor axis) of 5 or more, the grains of the residual austenite have an average minor axis length of 1 μm or less, and the grains of the residual austenite have a nearest-neighbor distance between the grains of 1 μm or less.
摘要翻译：本发明涉及耐氢脆性优异的超高强度薄钢板，该钢板以重量％计，C：0.10〜0.60％，Si：1.0〜3.0％，Mn：1.0〜3.5％，Mn：0.15％以下的P，0.02％以下的S，1.5％以下的Al，0.003〜2.0％的Cr，余量包括铁和不可避免的杂质; 其中残余奥氏体的晶粒的平均轴比（长轴/短轴）为5以上，残留奥氏体的平均短轴长度为1μm以下，残留奥氏体的晶粒为颗粒之间的最近邻距离为1μm以下。

5. 发明授权

US08673093B2 High-strength thin steel sheet 有权
标题翻译：高强度薄钢板
公开(公告)号：US08673093B2
公开(公告)日：2014-03-18
申请号：US12513514
申请日：2007-12-10
申请人： Muneaki Ikeda , Kouji Kasuya , Yoichi Mukai , Fumio Yuse , Junichiro Kinugasa
发明人： Muneaki Ikeda , Kouji Kasuya , Yoichi Mukai , Fumio Yuse , Junichiro Kinugasa
IPC分类号： C22C38/14 , C22C38/02 , C22C38/04 , C21D9/00
CPC分类号： C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14
摘要： The present invention is the thin steel sheet containing C, Si, Mn, P, S, Al, Mo, Ti, B, and N wherein a value Z calculated by the equation described below is 2.0-6.0, an area ratio against all the structure is 1% or above for retained austenite and 80% or above for total of bainitic ferrite and martensite, a mean axis ratio of the retained austenite crystal grain is 5 or above, and tensile strength is 980 MPa or above where Value Z=9×[C]+[Mn]+3×[Mo]+490×[B]+7×[Mo]/{100×([B]+0.001),and the thin steel sheet has 980 MPa or above tensile strength and enhanced hydrogen embrittlement resistance properties.
摘要翻译：本发明是含有C，Si，Mn，P，S，Al，Mo，Ti，B和N的薄钢板，其中由下述等式计算的值Z为2.0-6.0，残留奥氏体的结构为1％以上，贝氏体铁素体和马氏体的总和为80％以上，残留奥氏体晶粒的平均轴比为5以上，拉伸强度为980MPa以上，其中，Z = 9 ×[C] + [Mn] + 3×[Mo] + 490×[B] +7×[Mo] / {100×（[B] +0.001）），薄钢板的拉伸强度并提高耐氢脆性。

6. 发明申请

US20100080728A1 HIGH-STRENGTH THIN STEEL SHEET 有权
标题翻译：高强度薄钢板
公开(公告)号：US20100080728A1
公开(公告)日：2010-04-01
申请号：US12513514
申请日：2007-12-10
申请人： Muneaki Ikeda , Kouji Kasuya , Yoichi Mukai , Fumio Yuse , Junichiro Kinugasa
发明人： Muneaki Ikeda , Kouji Kasuya , Yoichi Mukai , Fumio Yuse , Junichiro Kinugasa
IPC分类号： C22C38/42 , C22C38/16 , C22C38/08 , C22C38/04 , C22C38/18 , C22C38/14 , B21B1/26
CPC分类号： C21D9/46 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/14
摘要： The present invention is the thin steel sheet containing C, Si, Mn, P, S, Al, Mo, Ti, B, and N wherein a value Z calculated by the equation described below is 2.0-6.0, an area ratio against all the structure is 1% or above for retained austenite and 80% or above for total of bainitic ferrite and martensite, a mean axis ratio of the retained austenite crystal grain is 5 or above, and tensile strength is 980 MPa or above. Value Z=9×[C]+[Mn]+3×[Mo]+490×[B]+7×[Mo]/{100×([B]+0.001)} Thus a high strength thin steel sheet with 980 MPa or above tensile strength and enhanced hydrogen embrittlement resistance properties can be provided. Also, in accordance with the present invention, the hot-rolled steel sheet for cold-rolling capable of manufacturing the high strength thin steel sheet with good productivity and having improved cold-rollability can be provided.
摘要翻译：本发明是含有C，Si，Mn，P，S，Al，Mo，Ti，B和N的薄钢板，其中由下述等式计算的值Z为2.0-6.0，残留奥氏体的结构为1％以上，贝氏体铁素体和马氏体的总和为80％以上，残留奥氏体晶粒的平均轴比为5以上，拉伸强度为980MPa以上。值Z = 9×[C] + [Mn] + 3×[Mo] + 490×[B] + 7×[Mo] / {100×（[B] +0.001）}因此，可以提供980MPa以上的拉伸强度和增强的耐氢脆性。此外，根据本发明，可以提供能够以良好的生产率制造高强度薄钢板并具有改进的冷轧性能的用于冷轧的热轧钢板。

7. 发明申请

US20060137769A1 High strength thin steel sheet having high hydrogen embrittlement resisting property and high workability 审中-公开
标题翻译：具有高耐氢脆性和高加工性的高强度薄钢板
公开(公告)号：US20060137769A1
公开(公告)日：2006-06-29
申请号：US11317181
申请日：2005-12-27
申请人： Fumio Yuse , Shushi Ikeda , Yoichi Mukai , Hiroshi Akamizu , Junichiro Kinugasa , Kenji Saito , Koichi Sugimoto , Tomohiko Hojo
发明人： Fumio Yuse , Shushi Ikeda , Yoichi Mukai , Hiroshi Akamizu , Junichiro Kinugasa , Kenji Saito , Koichi Sugimoto , Tomohiko Hojo
IPC分类号： C22C38/06
CPC分类号： C22C38/02 , C21D2211/002 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/14 , C22C38/16
摘要： The present invention provides a high strength thin steel sheet that has high hydrogen embrittlement resisting property and high workability. The high strength thin steel sheet having high hydrogen embrittlement resisting property has a metallurgical structure after stretch forming process to elongate 3% comprises: (i) 1% or more residual austenite; 80% or more in total of bainitic ferrite and martensite; and 9% or less (may be 0%) in total of ferrite and pearlite in terms of proportion of area to the entire structure, wherein the mean axis ratio (major axis/minor axis) of the residual austenite grains is 5 or higher, or (ii) 1% or more residual austenite in terms of proportion of area to the entire structure; mean axis ratio (major axis/minor axis) of the residual austenite grains is 5 or higher; mean length of minor axes of the residual austenite grains is 1 μm or less; minimum distance between the residual austenite grains is 1 μm or less; and the steel has tensile strength of 1180 MPa or higher.
摘要翻译：本发明提供耐氢脆性高，加工性高的高强度薄钢板。具有高耐氢脆性能的高强度薄钢板在拉伸成形过程之后具有冶金结构以延长3％，包括：（i）1％或更多的残余奥氏体; 总共为贝氏体铁素体和马氏体的80％以上; 以与面积相对于整个结构的面积的比例计算的铁素体和珠光体的总和为9％以下（可以为0％），其中残余奥氏体晶粒的平均轴比（长轴/短轴）为5以上，或（ii）以面积与整个结构的比例计算的1％或更多的残余奥氏体; 残余奥氏体晶粒的平均轴比（长轴/短轴）为5以上; 残余奥氏体晶粒的短轴的平均长度为1μm以下; 残余奥氏体晶粒之间的最小距离为1um或更小; 钢的拉伸强度为1180MPa以上。

8. 发明申请

US20060137768A1 High strength thin steel sheet having high hydrogen embrittlement resisting property 审中-公开
标题翻译：具有高耐氢脆性的高强度薄钢板
公开(公告)号：US20060137768A1
公开(公告)日：2006-06-29
申请号：US11317174
申请日：2005-12-27
申请人： Fumio Yuse , Shushi Ikeda , Yoichi Mukai , Hiroshi Akamizu , Junichiro Kinugasa , Kenji Saito , Koichi Sugimoto , Tomohiko Hojo
发明人： Fumio Yuse , Shushi Ikeda , Yoichi Mukai , Hiroshi Akamizu , Junichiro Kinugasa , Kenji Saito , Koichi Sugimoto , Tomohiko Hojo
IPC分类号： C22C38/06
CPC分类号： C22C38/02 , C21D2211/002 , C22C38/04 , C22C38/06 , C22C38/08 , C22C38/12 , C22C38/16
摘要： The purpose of the present invention is to provide a high strength thin steel sheet that has high hydrogen embrittlement resisting property. In order to achieve the above purpose, a high strength thin steel sheet having high hydrogen embrittlement resisting property comprises: C: 0.10 to 0.25%; Si: 1.0 to 3.0%; Mn: 1.0 to 3.5%; P: 0.15% or less; S: 0.02% or less; and Al: 1.5% or less (higher than 0%) in terms of percentage by weight, with balance of iron and inevitable impurities; and the metal structure comprises: residual austenite; 1% by area or more in proportion to the entire structure; bainitic ferrite and martensite: 80% or more in total; and ferrite and pearlite: 9% or less (may be 0%) in total, while the mean axis ratio (major axis/minor axis) of said residual austenite grains is 5 or higher, and the steel has tensile strength of 1180 MPa or higher.
摘要翻译：本发明的目的是提供一种具有高耐氢脆性的高强度薄钢板。为了实现上述目的，具有高耐氢脆性的高强度薄钢板包括：C：0.10〜0.25％ Si：1.0〜3.0％ Mn：1.0〜3.5％ P：0.15％以下; S：0.02％以下; 和Al：1.5重量％以下（高于0重量％），余量为铁和不可避免的杂质; 并且金属结构包括：残余奥氏体; 1％以上，占整个结构的比例; 贝氏体铁素体和马氏体总计为80％以上; 铁素体和珠光体的总和为9％以下（可以为0％），而残留奥氏体晶粒的平均轴比（长轴/短轴）为5以上，钢的拉伸强度为1180MPa，更高。

9. 发明授权

US08197617B2 High-strength steel sheet having excellent elongation, stretch flangeability and weldability 有权
标题翻译：优异的伸长率，拉伸凸缘性和焊接性的高强度钢板
公开(公告)号：US08197617B2
公开(公告)日：2012-06-12
申请号：US12303634
申请日：2007-06-04
申请人： Michiharu Nakaya , Yoichi Mukai , Koichi Sugimoto
发明人： Michiharu Nakaya , Yoichi Mukai , Koichi Sugimoto
IPC分类号： C22C38/04 , C22C38/06 , C22C38/22
CPC分类号： C22C38/02 , C21D9/46 , C22C38/04
摘要： The present invention provides a high-strength steel sheet which has a 980 MPa class tensile strength as well as has excellent elongation, stretch flangeability and weldability, and also has excellent anti-delayed fraction property. The high-strength steel sheet comprises steel satisfying: C: 0.12 to 0.25%, Si: 1.0 to 3.0%, Mn: 1.5 to 3.0%, P: 0.15% or less, S: 0.02% or less, Al: 0.4% or less, and comprising the remnant made from iron and unavoidable impurities, wherein a ratio of the contents of Si and C (Si/C) is within the range from 7 to 14 in terms of a mass ratio, and a microstructure in a longitudinal section comprises, by an occupancy ratio based on the entire structure, 1) bainitic ferrite: 50% or more, 2) lath-type residual austenite: 3% or more, and 3) block-type residual austenite: 1% or more to ½×occupancy ratio of lath-type residual austenite, and 4) average size of block-type second phase is 10 μm or less.
摘要翻译：本发明提供一种具有980MPa级抗拉强度以及优异的伸长率，拉伸凸缘性和焊接性的高强度钢板，并且还具有优异的抗延迟分级性能。高强度钢板包括：C：0.12〜0.25％，Si：1.0〜3.0％，Mn：1.5〜3.0％，P：0.15％以下，S：0.02％以下，Al：0.4％并且包含由铁和不可避免的杂质制成的残余物，其中Si和C（Si / C）的含量比以质量比计在7至14的范围内，并且纵向截面中的微观结构包括基于整体结构的占空比，1）贝氏体铁素体：50％以上，2）板条残余奥氏体：3％以上，3）块状残余奥氏体：1％以上〜1 / ×板条残留奥氏体的占有率，4）块状第二相的平均尺寸为10μm以下。

10. 发明申请

US20100221138A1 HIGH-STRENGTH COMPOSITE STEEL SHEET HAVING EXCELLENT MOLDABILITY AND DELAYED FRACTURE RESISTANCE 审中-公开
标题翻译：高强度复合钢板，具有优异的成型性和延缓抗断裂性
公开(公告)号：US20100221138A1
公开(公告)日：2010-09-02
申请号：US12303566
申请日：2007-06-04
申请人： Michiharu Nakaya , Yoichi Mukai , Koichi Sugimoto
发明人： Michiharu Nakaya , Yoichi Mukai , Koichi Sugimoto
IPC分类号： C22C38/28 , C22C38/06 , C22C38/18 , C22C38/02 , C22C38/04 , C22C38/00
CPC分类号： C22C38/04 , C21D9/46 , C22C38/02
摘要： The present invention provides a high-strength composite steel sheet which has a tensile strength of 980 MPa class as well as excellent and excellent anti-delayed fraction property, and also has excellent spot-weldability. The high-strength composite steel sheet comprises a steel satisfying: C: 0.10 to 0.25% (% by mass in case of a chemical component, the same shall apply hereinafter), Si: 1.0 to 3.0%, Mn: 1.5 to 3.0%, P: 0.15% or less, S: 0.02% or less, Al: 0.4% or less, and comprising the remnant made from iron and unavoidable impurities; the contents of Si, Al, Mn and Cr satisfy the relationship of “(Si+Al)/Mn or (Si+Al)/(Mn+Cr)=0.74 to 1.26”; and microstructure is specified.
摘要翻译：本发明提供一种拉伸强度为980MPa等级，优异的抗延迟分级特性，且具有优异的点焊性的高强度复合钢板。高强度复合钢板包括满足以下条件的钢：C：0.10〜0.25％（化学成分的情况下的质量％，以下相同），Si：1.0〜3.0％，Mn：1.5〜3.0％ P：0.15％以下，S：0.02％以下，Al：0.4％以下，由铁和不可避免的杂质构成的残留物; Si，Al，Mn和Cr的含量满足“（Si + Al）/ Mn或（Si + Al）/（Mn + Cr）= 0.74〜1.26”的关系。并指定微结构。

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