发明申请
- 专利标题: HIGH-STRENGTH FORGED PARTS HAVING HIGH REDUCTION OF AREA AND METHOD FOR PRODUCING SAME
- 专利标题(中): 具有高度减少面积的高强度锻造件及其生产方法
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申请号: US11874516申请日: 2007-10-18
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公开(公告)号: US20080092996A1公开(公告)日: 2008-04-24
- 发明人: Shushi Ikeda , Koichi Makii , Hiroshi Akamizu , Yoichi Mukai , Koh-ichi Sugimoto
- 申请人: Shushi Ikeda , Koichi Makii , Hiroshi Akamizu , Yoichi Mukai , Koh-ichi Sugimoto
- 申请人地址: JP Kobe-shi 651-8585
- 专利权人: KABUSHIKI KAISHA KOBE SEIKO SHO
- 当前专利权人: KABUSHIKI KAISHA KOBE SEIKO SHO
- 当前专利权人地址: JP Kobe-shi 651-8585
- 优先权: JP2003-085674 20030326; JP2003-353967 20031014
- 主分类号: C21D8/00
- IPC分类号: C21D8/00 ; C22C38/00
摘要:
A high-strength forged part is disclosed which comprises a base phase structure, comprising 30% or more of ferrite in terms of a space factor, and a second phase structure, comprising bainite and/or martensite, and retained austenite having an average grain diameter of 5 μm or less and a content represented by 50X[C]
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