- 专利标题: HIGH STRENGTH STEEL PRODUCTS AND ANNEALING PROCESSES FOR MAKING THE SAME
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申请号: PCT/US2020/046847申请日: 2020-08-18
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公开(公告)号: WO2021034851A1公开(公告)日: 2021-02-25
- 发明人: HOYDICK, David Paul , SILVA, Eduardo Augusto , MCCOSBY, Matthew Michael
- 申请人: UNITED STATES STEEL CORPORATION
- 申请人地址: 600 Grant Street
- 专利权人: UNITED STATES STEEL CORPORATION
- 当前专利权人: UNITED STATES STEEL CORPORATION
- 当前专利权人地址: 600 Grant Street
- 代理机构: TOWNER, Alan
- 优先权: US16/544,127 2019-08-19
- 主分类号: C21D1/19
- IPC分类号: C21D1/19 ; C21D1/26 ; C21D1/28 ; C21D6/00 ; C21D8/02 ; C21D8/04 ; C21D9/46 ; C21D9/48 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/12 ; C22C38/14 ; C23C2/00 ; C23C2/40 ; C25D3/00 ; C25D7/06 ; C21D1/25
摘要:
The present invention provides steel sheet products having controlled compositions that are subjected to two-step annealing processes to produce sheet products having desirable microstructures and favorable mechanical properties such as high strength and ultra-high formability. The steel sheet products may be cold rolled or hot rolled. Steels processed in accordance with the present invention exhibit favorable combined ultimate tensile strength and total elongation (UTS·TE) properties, and may fall into the category of Generation 3 advanced high strength steels, desirable in various industries including automobile manufacturers.