Duplex process for improving the hot workability of aluminum-mag

Details Duplex process for improving the hot workability of aluminum-mag Duplex process for improving the hot workability of aluminum-mag

1976-08-11

1978-01-03

Stallard, W.

Metal treatment

Compositions

Heat treating

148 127A, C22F 104

Patent

active

040664767

ABSTRACT:
A method of heat treating aluminum alloys of the aluminum-magnesium type to improve the hot workability of the alloys which comprises homogenizing the alloys at a first temperature from 950.degree. to 1050.degree. F for from 2 to 12 hours, cooling the homogenized alloys to a second temperature, further homogenizing said alloys at said second temperature where the second temperature is from 750.degree. to 900.degree. F for from 2 to 12 hours and optionally finally slowly cooling said alloys to at least 800.degree. F at a rate of less than 100.degree. F per hour.

REFERENCES:
patent: 3346371 (1967-10-01), Jagaciak
patent: 3346372 (1967-10-01), Jagaciak
patent: 3346377 (1967-10-01), Jagaciak
patent: 3379583 (1968-04-01), Gruhl et al.
patent: 3392062 (1968-07-01), Altenpohl et al.
patent: 3418177 (1968-12-01), Pryor
patent: 3762962 (1973-10-01), Nilsson
patent: 3816190 (1974-06-01), Warbichler et al.
patent: 3990922 (1976-11-01), Gullotti et al.

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