发明授权
- 专利标题: 2XXX series aluminum lithium alloys having low strength differential
- 专利标题(中): 2XXX系列铝锂合金具有低强度差
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申请号: US13084451申请日: 2011-04-11
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公开(公告)号: US08845827B2公开(公告)日: 2014-09-30
- 发明人: Cagatay Yanar , Roberto J. Rioja , Jen C. Lin , Ralph R. Sawtell
- 申请人: Cagatay Yanar , Roberto J. Rioja , Jen C. Lin , Ralph R. Sawtell
- 申请人地址: US PA Pittsburgh
- 专利权人: Alcoa Inc.
- 当前专利权人: Alcoa Inc.
- 当前专利权人地址: US PA Pittsburgh
- 代理机构: Greenberg Traurig, LLP
- 主分类号: C22C21/16
- IPC分类号: C22C21/16
摘要:
The present application discloses wrought 2xxx Al—Li alloy products that are work insensitive. The wrought aluminum alloy products generally include from about 2.75 wt. % to about 5.0 wt. % Cu, from about 0.2 wt. % to about 0.8 wt. % Mg, where the ratio of copper-to-magnesium ratio (Cu/Mg) in the aluminum alloy is in the range of from about 6.1 to about 17, from about 0.1 wt. % to 1.10 wt. % Li, from about 0.3 wt. % to about 2.0 wt. % Ag, from 0.50 wt. % to about 1.5 wt. % Zn, up to about 1.0 wt. % Mn, the balance being aluminum, optional incidental elements, and impurities. The wrought aluminum alloy products may realize a low strength differential and in a short aging time due to their work insensitive nature.
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