Invention Application
- Patent Title: High-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having fatigue resistance, corrosion resistance, ductility and plating adhesion, after severe deformation, and a method of producing the same
- Patent Title (中): 具有耐变形性的耐疲劳性，耐腐蚀性，延展性，电镀粘合性的高强度热浸镀锌钢板和热浸镀锌钢板及其制造方法
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Application No.: US11893935Application Date: 2007-08-16
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Publication No.: US20080035247A1Publication Date: 2008-02-14
- Inventor: Nobuhiro Fujita , Masafumi Azuma , Manabu Takahashi , Yasuhide Morimoto , Masao Kurosaki , Akihiro Miyasaka
- Applicant: Nobuhiro Fujita , Masafumi Azuma , Manabu Takahashi , Yasuhide Morimoto , Masao Kurosaki , Akihiro Miyasaka
- Applicant Address: JP Tokyo
- Assignee: Nippon Steel Corporation
- Current Assignee: Nippon Steel Corporation
- Current Assignee Address: JP Tokyo
- Priority: JP2001-170857 20010606; JP2001-211942 20010712; JP2001-304034 20010928; JP2001-304035 20010928; JP2001-304036 20010928; JP2001-304037 20010928; JP2002-131643 20020507
- Main IPC: C21D9/46
- IPC: C21D9/46 ; B22D25/02 ; C22C38/00
Abstract:
The present invention provides: a high-strength high-ductility hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet excellent in ductility, which improves non-plating defects and plating adhesion after severe deformation, and a method of producing the same; a high-strength and high-ductility hot-dip galvanized steel sheet having high fatigue resistance and corrosion resistance; a high-strength hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having superior appearance and workability, which suppresses the generation of non-plating defects, and a method of producing the same; and a high-strength hot-dip galvannealed steel sheet and a high-strength hot-dip galvanized steel sheet, which suppress non-plating defects and surface defects and have both corrosion resistance, in particular corrosion resistance in an environment containing chlorine ion, and high ductility, and a method of producing the same.
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