Aluminum-lithium flat rolled product and method of making

Details Aluminum-lithium flat rolled product and method of making Aluminum-lithium flat rolled product and method of making

1987-03-02

1988-12-13

Dean, R.

Metal treatment

Compositions

Heat treating

148 127A, 148415, 148416, 148417, C22F 104

Patent

active

047908840

ABSTRACT:
Disclosed is a method of making aluminum base alloy flat rolled product substantially free of Luder's lines after stretching, the method comprising the steps of providing a body of a lithium-containing aluminum base alloy and working the body to produce a flat rolled product prior to solution heat treating and quenching. The flat rolled product is preaged for a time and temperature which does not substantially affect mechanical properties but which permits stretching the flat rolled product without formation of Luder's lines. Thereafter, the preage flat rolled product is stretched and aged to a condition having a substantially stable level of mechanical properties.

REFERENCES:
patent: 4648913 (1987-03-01), Hunt, Jr. et al.

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