Method of imparting a fine grain structure to 2000 & 7000 series

Details Method of imparting a fine grain structure to 2000 & 7000 series Method of imparting a fine grain structure to 2000 & 7000 series

1981-07-06

1984-12-25

Dean, R.

Metal treatment

Compositions

Heat treating

C22F 104

Patent

active

044901887

ABSTRACT:
A method is provided for obtaining a fine grain structure in 2000 and 7000 series aluminum alloys. The alloy is solution treated and overaged to provide a suitable precipitate. It is then softened and stabilized so that it can be cold rolled at room temperature without cracking. After cold rolling, the alloy is held at a recrystallization temperature so that new grains are nucleated and grow to form a fine grain structure.

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

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