发明名称 |
Aluminum copper magnesium alloys having ancillary additions of lithium |
摘要 |
<p>An aluminum-copper-magnesium alloy having ancillary additions of lithium. The alloy composition includes from about 3 to about 5 weight percent Cu, from about 0.5 to about 2 weight percent Mg, and from about 0.01 to about 0.9 weight percent Li. The combined amount of Cu and Mg is maintained below a solubility limit of the aluminum alloy. The alloys possess improved combinations of fracture toughness and strength, and also exhibit good fatigue crack growth resistance.
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申请公布号 |
EP2305849(A3) |
申请公布日期 |
2011.09.21 |
申请号 |
EP20100183448 |
申请日期 |
2004.09.27 |
申请人 |
ALCOA INC. |
发明人 |
BRAY, GARY H.;RIOJA, ROBERTO J.;MAGNUSEN, PAUL E. |
分类号 |
C22C21/16 |
主分类号 |
C22C21/16 |
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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