Aluminum alloy products and method of making same

Details Aluminum alloy products and method of making same Aluminum alloy products and method of making same

1979-12-28

1982-06-22

Dean, R.

Metal treatment

Compositions

Heat treating

148 115A, 148 127A, 148417, 148439, C22F 104

Patent

active

043360750

ABSTRACT:
A 2000 series aluminum alloy characterized by high strength, high fatigue resistance, and high fracture toughness consists essentially of 4.2 to 4.7 percent copper, 1.3 to 1.8 percent magnesium, 0.8 to 1.3 percent manganese, 0.08 to 0.15 percent zirconium, maximums of 0.15 percent iron, 0.12 percent silicon, 0.25 percent zinc, 0.15 percent titanium, 0.10 percent chromium, 0.05 percent of each of any other trace elements present, and a maximum total of such other trace elements of 0.15 percent, the balance of the alloy being aluminum. The foregoing alloy is hot-worked and heat-treated to yield a final wrought product having a highly elongated and substantially unrecrystallized microstructure.

REFERENCES:
patent: 3826688 (1974-07-01), Levy

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