发明名称 |
Batch-annealed dual-phase steel |
摘要 |
Dual-phase steel, consisting essentially of a ferrite matrix containing islands of martensite, is produced by batch annealing of hot or cold rolled steel having carbon below 0.2% and manganese below 2% and at least critical contents of copper (0.4%) and nickel (0.6%), with heat to the alpha plus gamma region, followed by slow cooling. This procedure is effective and controllable, and yields a dual-phase steel product that has high tensile strength with excellent elongation properties and that develops good yield strength upon moderate deformation.
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申请公布号 |
US4437902(A) |
申请公布日期 |
1984.03.20 |
申请号 |
US19810312510 |
申请日期 |
1981.10.19 |
申请人 |
REPUBLIC STEEL CORPORATION |
发明人 |
PICKENS, JOHN W.;ABRAHAM, JOHN K.;MINTUS, RAYMOND E.;THOMAS, MILLICENT H. |
分类号 |
C22C38/00;C21D8/02;C21D8/10;C21D9/46;C22C38/06;C22C38/08;(IPC1-7):C21D8/10 |
主分类号 |
C22C38/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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