发明申请
- 专利标题: HIGH-STRENGTH GALVANIZED STEEL SHEET AND METHOD OF MANUFACTURING THE SAME
- 专利标题(中): 高强度钢化钢板及其制造方法
-
申请号: US13392455申请日: 2010-08-31
-
公开(公告)号: US20120152411A1公开(公告)日: 2012-06-21
- 发明人: Yasuhide Morimoto , Nobuhiro Fujita , Akihiro Miyasaka , Masafumi Azuma , Noriyuki Suzuki , Toshiki Nonaka
- 申请人: Yasuhide Morimoto , Nobuhiro Fujita , Akihiro Miyasaka , Masafumi Azuma , Noriyuki Suzuki , Toshiki Nonaka
- 优先权: JP2009-200467 20090831; JP2009-216986 20090918; JP2009-217578 20090918
- 国际申请: PCT/JP10/64839 WO 20100831
- 主分类号: B32B15/01
- IPC分类号: B32B15/01 ; B22D27/02 ; C23C2/28
摘要:
Provided is a galvanized steel sheet having a tensile strength of 770 MPa or more including a steel sheet portion, and a plated layer formed on the surface of the steel sheet portion, in which the plated layer is a galvanized plated layer or an galvannealed plated layer, the steel sheet portion has a soft layer that directly adjoins the interface with the plated layer and an inside layer that is other than the soft layer, the thickness D of soft layer is 0.001% to 5% of thickness t of the steel sheet portion, and, when the hardness of the soft layer measured by nano-indentation method is indicated by H1, and the representative hardness of the steel sheet portion measured by the nano-indentation method is indicated by Ha in cross section that goes along the thickness direction of the steel sheet portion, H1 is 5% to 75% of Ha.
公开/授权文献
信息查询