Aluminum-lithium alloys

Details Aluminum-lithium alloys Aluminum-lithium alloys

1985-10-31

1989-07-04

Dean, R.

Metal treatment

Compositions

Heat treating

148415, 148416, 148417, 148437, 148438, 148439, 148440, C22F 104

Patent

active

048447501

ABSTRACT:
Disclosed is a method of making lithium containing aluminum base alloy products having improved properties in the short transverse direction. The method comprises the steps of providing a body of a lithium containing aluminum base alloy and heating the body to a temperature for initial hot working but at a temperature sufficiently low that a substantial amount of grain boundary precipitate is not dissolved. The method further includes hot working the heated body to provide an intermediate product, recrystallizing the intermediate product and then hot working the recrystallized product to a final shaped product. The final shaped product is solution heat treated, quenched and aged to provide a non-recrystallized final product having improved levels of short transverse properties.

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patent: 2915390 (1959-12-01), Criner
patent: 2915391 (1959-12-01), Criner
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patent: 4409038 (1983-10-01), Weber
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"Aluminum-Lithium Alloys II", edited by E. A. Starke, Jr. and T. H. Sanders, Jr. on Feb. 1984.

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