Method of producing clad metal

Details Method of producing clad metal Method of producing clad metal

1988-03-24

1989-07-04

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Making composite or hollow article

419 28, 419 29, 419 49, B22F 700

Patent

active

048448630

ABSTRACT:
A method of producing clad metal comprises the steps of forming a cladding on the surface of a metal substrate by subjecting powder of a metal which is of a different type from that of the metal substrate and is selected from among Ni-base alloys, Co-base alloys, Ti-base alloys, Fe-base superalloys and stainless steels to hot isostatic pressing under a gas pressure load of not less than 300 Kg/cm.sup.2 at a temperature not higher than the solidus thereof, thereby to obtain a composite material, and elongating the composite material by hot working. Optionally the composite material is subjected to soaking or solution treatment before being subjected to hot working.

REFERENCES:
patent: 3652235 (1972-03-01), Manilla et al.
patent: 3753704 (1973-08-01), Manilla et al.
patent: 4065302 (1977-12-01), Turillon
patent: 4627958 (1986-12-01), Hays
patent: 4657822 (1987-04-01), Goldstein
patent: 4747225 (1988-05-01), Gstettner et al.

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