High strength weldable aluminum base alloy product and method of

Details High strength weldable aluminum base alloy product and method of High strength weldable aluminum base alloy product and method of

1987-06-08

1989-10-17

Dean, R.

Metal treatment

Compositions

Heat treating

148417, 148418, C22F 104

Patent

active

RE0330922

ABSTRACT:
A weldable aluminum base alloy product is disclosed which is characterized by high strength, including high resistance to ballistic penetration and resistance to stress-corrosion cracking. The alloy consists essentially of from above 5 wt. % to 7 wt. % copper, 0 to 0.8 wt. % manganese, 0.1 wt. % titanium, 0 to 0.25 wt. % vanadium, 0 to 0.25 wt. % zirconium and 0.10 to 0.30 wt. % magnesium with the balance consisting essentially of aluminum. The alloy is cold worked a minimum amount equivalent to 6% stretching at room temperature after solution heat treatment and quenching, preferably by stretching. The alloy is then aged, after cold working, for at least 2 hours at a temperature of at least 121.degree. C. (250.degree. F.).

REFERENCES:
patent: 2784126 (1957-03-01), Criner
patent: 3826688 (1974-07-01), Levy

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