发明授权
- 专利标题: Aluminum alloy product having improved combinations of properties
- 专利标题(中): 具有改进的性能组合的铝合金产品
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申请号: US702655申请日: 1991-05-17
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公开(公告)号: US5221377A公开(公告)日: 1993-06-22
- 发明人: Warren H. Hunt, Jr. , James T. Staley , David A. Lukasak , David B. Reiser , Rebecca K. Wyss , Lynette M. Angers
- 申请人: Warren H. Hunt, Jr. , James T. Staley , David A. Lukasak , David B. Reiser , Rebecca K. Wyss , Lynette M. Angers
- 申请人地址: PA Pittsburgh
- 专利权人: Aluminum Company of America
- 当前专利权人: Aluminum Company of America
- 当前专利权人地址: PA Pittsburgh
- 主分类号: C22C21/10
- IPC分类号: C22C21/10 ; C22F1/053 ; G11B23/087
摘要:
An alloy product having improved combinations of strength, density, toughness and corrosion resistance, said alloy product consisting essentially of about 7.6 to 8.4% zinc, about 1.8 to 2.2% magnesium, about 2 to 2.6% copper and at least one element selected from zirconium, vanadium and hafnium present in a total amount not exceeding about 0.5%, preferably about 0.05 to 0.25% zirconium, the balance aluminum and incidential elements and impurities. The alloy product, suitable for aerospace applications, exhibits high yield strength, at least about 10% greater yield strength than its 7X50-T6 counterpart, with good toughness and corrosion resistance properties typically comparable to or better than those of its 7X50-T76 counterpart. Upper wing members made from this alloy typically have a yield strength over 84 ksi, good fracture toughness and an EXCO exfoliation resistance level of "EC" or better, typically "EB".
公开/授权文献
- US5816167A Playground carriage 公开/授权日:1998-10-06
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