Method of producing a compact of amorphous alloys

Details Method of producing a compact of amorphous alloys Method of producing a compact of amorphous alloys

1988-07-28

1990-05-01

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 23, 419 41, 75246, G22F 700

Patent

active

049214101

ABSTRACT:
A method of producing a compact of amorphous alloy, comprising the steps of, preparing a billet by filling a container made of a ductile metal with powder of the amorphous alloy, plastically working said billet at a temperature higher than plasticity transition temperature of the amorphous alloy but less than crystallization temperature of said alloy so that both a shear strain of not less than about 0.7 but less than 1.8 and a stress not less than about 90 Kgf/mm.sup.2 and less than 400 Kgf/mm.sup.2 are applied to the amorphous alloy powder filled in the container.

REFERENCES:
patent: 4377622 (1983-03-01), Liebermann
patent: 4594104 (1989-06-01), Reybould
patent: 4668591 (1987-05-01), Minemora et al.
patent: 4820141 (1989-04-01), Shingu et al.
"Physica B C", vol. 139/140, issued in 1989 in Netherland.
"Material Science and Engineering", vol. 46, No. 2, issued in 1989 in Netherland.
"Rapidly Solidified Crystal Alloys", issued in 1985 in U.S.A.

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