Nickel and cobalt alloys which contain tungsten aand carbon and

Details Nickel and cobalt alloys which contain tungsten aand carbon and Nickel and cobalt alloys which contain tungsten aand carbon and

1982-07-12

1983-10-18

Metz, Andrew

Alloys or metallic compositions

Nickel base

Chromium containing

420435, 420436, 420441, 420442, 148403, C22C 3808, C22C 3822

Patent

active

044104901

ABSTRACT:
New nickel and cobalt base alloys containing tungsten and carbon are disclosed. The alloys are subjected to rapid solidification processing (RSP) technique which produces cooling rates between 10.sup.5 .degree. to 10.sup.7 .degree. C./sec. The as-quenched ribbon, powder, etc. consists predominantly of amorphous phase. The amorphous phase is subjected to suitable heat treatments so as to produce a transformation to a microcrystalline alloy which includes carbides; this heat treated alloy exhibits high hardness combined with toughness for many applications wherein superhard materials are required.

REFERENCES:
patent: 4056411 (1977-11-01), Chen et al.
patent: 4067732 (1978-01-01), Ray
patent: 4297135 (1981-10-01), Giessen et al.
patent: 4359352 (1982-11-01), Ray et al.
patent: 4365994 (1982-12-01), Ray

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