Products forged in aluminum alloys with improved mechanical char

Details Products forged in aluminum alloys with improved mechanical char Products forged in aluminum alloys with improved mechanical char

1974-12-23

1977-04-26

Stallard, W.

Metal treatment

Compositions

Heat treating

148 127A, 148 32, 148 325, 148159, C22D 104

Patent

active

040199274

ABSTRACT:
The invention relates to products forged in aluminum based alloys with a very low hydrogen content. These products are endowed with an isotropic structure of equi-axial grains, which furnish mechanical features substantially equal in all directions and they have a particularly low critical hardening speed. They are obtained by heat treatment at a temperature slightly higher than the temperature of the solid state. They allow a substantial lightening of certain parts, particularly in aeronautic constructions and the application of hardening in boiling water or even in air without substantial reduction of the mechanical characteristics.

REFERENCES:
patent: 2249349 (1941-07-01), Deutsch
patent: 3791876 (1974-02-01), Kroger
patent: 3791880 (1974-02-01), Hunsicker et al.
patent: 3826688 (1974-07-01), Levy
patent: 3847681 (1974-11-01), Waldman et al.
patent: 3868250 (1975-02-01), Zimmermann

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