发明申请
- 专利标题: COLD-ROLLED STEEL SHEET AND PROCESS FOR PRODUCTION THEREOF
- 专利标题(中): 冷轧钢板及其生产方法
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申请号: US13818351申请日: 2011-08-22
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公开(公告)号: US20140144553A1公开(公告)日: 2014-05-29
- 发明人: Kengo Hata , Toshiro Tomida , Norio Imai
- 申请人: Kengo Hata , Toshiro Tomida , Norio Imai
- 优先权: JP2010-186146 20100823
- 国际申请: PCT/JP11/68854 WO 20110822
- 主分类号: C22C38/18
- IPC分类号: C22C38/18 ; C22C38/14 ; C22C38/00 ; C22C38/04 ; C22C38/02 ; C21D8/02 ; C22C38/12
摘要:
A cold-rolled steel sheet having a refined structure in which grain growth during annealing is suppressed has a chemical composition containing, in mass percent, controlled amounts of carbon, manganese, niobium, titanium, vanadium, sol. Aluminum, chromium, molybdenum, boron, calcium, and REM and a microstructure which contains at least 50% by area of ferrite as a main phase, a second phase containing at least 10% by area of a low temperature transformation phase and 0-3% by area of retained austenite and which satisfies the following Equations (1)-(3), in addition to a particular texture, dm
公开/授权文献
- US09435013B2 Cold-rolled steel sheet and process for production thereof 公开/授权日:2016-09-06
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