发明名称 |
Ultra-thick high strength 7xxx series aluminum alloy products and methods of making such products |
摘要 |
<p>The present invention is directed to an ultra-thick high strength aluminum alloy, comprising 7.5 to 8.4 wt. % Zn, 1.6 to 2.3 wt. % Mg, 1.4 to 2.1 wt. % Cu, and 0.05 to 0.15 wt. % Zr. This alloy can be fabricated to produce 2-10 inch thick plate, extrusion or forging products, and is especially suitable for aerospace structural components, especially large commercial airplane wing structure applications. The aluminum product has a minimum yield strength of [75 ksi - 0.8 x (thickness in inch - 3.94 inch)] in LT direction and [76 ksi - 0.8 x (thickness in inch - 3.94 inch)] in L direction for more than 2 inch thick product in T7651 temper. Besides strength, product provides necessary damage tolerance performance as well as corrosion resistance performance suitable for aerospace application.</p> |
申请公布号 |
EP2662467(A1) |
申请公布日期 |
2013.11.13 |
申请号 |
EP20130164525 |
申请日期 |
2013.04.19 |
申请人 |
KAISER ALUMINUM FABRICATED PRODUCTS, LLC |
发明人 |
DORWARD, RALPH C.;AINSWORTH, PAUL JOHN;BALDWIN, FLORENCE A.;LASSINCE, PHILIPPE;LONG, ZHENGDONG;MATUSKA, ROBERT A.;NASH, ROY AUSTIN;PARKINSON, RAYMOND D.;TAYLOR, TIMOTHY ALLEN |
分类号 |
C22C21/10;C22C21/12;C22C21/16;C22F1/053 |
主分类号 |
C22C21/10 |
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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