Tungsten carbide-base hard alloy for hot-working apparatus membe

Details Tungsten carbide-base hard alloy for hot-working apparatus membe Tungsten carbide-base hard alloy for hot-working apparatus membe

1982-04-02

1984-08-21

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75241, 75252, 75255, B22F 314, C22C 2900

Patent

active

044668295

ABSTRACT:
A WC-Ni-Co-Al-Cr system hard alloy suitable as a material for hot working apparatus members has a lower Co content than conventionally used WC-Co system alloys and contains in place thereof greater quantities of Ni and Al, whereby, and also because the oxygen content is suppressed at a low level, fine particles of .gamma.' phase (Ni.sub.3 Al) are precipitated in a binder phase which binds the disperse phase of WC to impart characteristics such as excellent toughness, abrasion resistance, high-temperature strength, and oxidation resistance.

REFERENCES:
patent: 3771975 (1973-11-01), Frehn
patent: 3916497 (1975-11-01), Doi et al.
patent: 3917463 (1975-11-01), Doi et al.
patent: 3993446 (1976-11-01), Okawa

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