Alloys or metallic compositions – Aluminum base
Patent
1988-01-28
1992-08-11
Dean, R.
Alloys or metallic compositions
Aluminum base
148417, 148437, 148439, 148693, 148694, 420532, 420535, C22C 2100, C22F 104
Patent
active
051376865
ABSTRACT:
Disclosed is an aluminum base alloy suitable for forming into a wrought product having improved combinations of strength, corrosion resistance and fracture toughness. The alloy is comprised of 0.2 to 5.0 wt. % Li, 0.05 to 6.0 wt. % Mg, at least 2.45 wt. % Cu, 0.01 to 0.16 wt. % Zr, 0.05 to 12 wt. % Zn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, the balance aluminum and incidental impurities.
REFERENCES:
patent: 2915390 (1959-12-01), Criner
patent: 4094705 (1978-06-01), Sperry et al.
patent: 4571272 (1986-02-01), Grimes
patent: 4582544 (1986-04-01), Grimes et al.
patent: 4603029 (1986-07-01), Quist et al.
patent: 4626409 (1986-12-01), Miller
patent: 4636357 (1987-01-01), Peel et al.
patent: 4648913 (1987-03-01), Hunt, Jr. et al.
"Microstructure and Toughness of High Strength Aluminum Alloys" by J. T. Staley, ASTM STP 605, pp. 71-103.
Cho Alex
Colvin Edward L.
Rioja Roberto J.
Vasudevan Asuri K.
Alexander Andrew
Aluminum Company of America
Dean R.
Koehler Robert R.
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