Method of forming a fine grain structure on the surface of an al

Details Method of forming a fine grain structure on the surface of an al Method of forming a fine grain structure on the surface of an al

1987-05-27

1989-01-24

Dean, R.

Metal treatment

Compositions

Heat treating

148415, C22F 104

Patent

active

047999748

ABSTRACT:
An aluminum alloy is provided which has a surface with a fine grain structure. It is produced by overaging an aluminum alloy and then cold working only the surface by shot peening or other surface working technique. The alloy is then heated so that the overaged, cold-worked surface recrystallizes into a fine grain structure.

REFERENCES:
patent: 4092181 (1978-05-01), Paton et al.

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