Nickel and cobalt alloys which contain tungsten aand carbon and have been processed by rapid solidification process and method
US4410490A · kind A · utility
13Cited by
5References
11Claims
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Key dates
| Filing date | Jul 12, 1982 |
| Grant date | Oct 18, 1983 |
| Priority date | — |
| Expiry date | Jul 12, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C45/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
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