Process for producing high strength and high toughness aluminum

Details Process for producing high strength and high toughness aluminum Process for producing high strength and high toughness aluminum

1992-06-11

1994-05-03

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148698, 148699, C22C 4508

Patent

active

053084101

ABSTRACT:
A process for producing an aluminum alloy with high strength and toughness includes the steps of: preparing an alloy blank having a primary structure which is one selected from a single-phase structure comprised of a solid-solution phase, a single-phase structure comprised of an amorphous phase, and a mixed-phase structure comprised of a solid-solution phase and an amorphous phase, and subjecting the alloy blank to a thermal treatment to provide an aluminum alloy which has a secondary structure containing 20% or more by volume fraction Vf of chrysanthemum-like patterned phases each having a diameter of at most 5 .mu.m and comprising a solid-solution phase and an intermetallic compound phase arranged radiately.

REFERENCES:
patent: 4347076 (1982-08-01), Ray et al.
patent: 4715893 (1987-12-01), Skinner et al.
patent: 4743317 (1988-05-01), Skinner et al.
patent: 5000781 (1991-03-01), Skinner et al.

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