发明名称 |
Ultra-Thick High Strength 7xxx Series Aluminum Alloy Products and Methods of Making Such Products |
摘要 |
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×(thickness in inch−3.94 inch)] in LT direction and [76 ksi−0.8×(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. |
申请公布号 |
US2015240338(A1) |
申请公布日期 |
2015.08.27 |
申请号 |
US201313867682 |
申请日期 |
2013.04.22 |
申请人 |
Kaiser Aluminum Fabricated Products, LLC |
发明人 |
Dorward Ralph;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 |
C22F1/053;C22C21/10;C22F1/00 |
主分类号 |
C22F1/053 |
代理机构 |
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代理人 |
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主权项 |
1. An ultra-thick high strength aluminum alloy product comprising
7.5 to 8.4 wt. % Zn, 1.6 to 2.3 wt. % Mg, 1.4 to 2.1 wt. % Cu, and one or more elements selected from the group consisting of up to 0.2 wt. % Zr, up to 0.2 wt. % Sc, and up to 0.2 wt. % Hf, with the balance Al, incidental elements and impurities, wherein said aluminum alloy product is a 2-10 inches thick plate, extrusion, or forging product and has a minimum yield strength of [75 ksi−0.8×(thickness in inch−3.94 inch)] in LT direction and [76 ksi−0.8×(thickness in inch−3.94 inch)] in L direction. |
地址 |
Foothill Ranch CA US |