Method for hardfacing a ferrous base material

Details Method for hardfacing a ferrous base material Method for hardfacing a ferrous base material

1983-12-20

1984-10-23

Beck, Shrive P.

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

427423, 428570, 428937, 75251, B05D 106, B05D 110

Patent

active

044788711

ABSTRACT:
Tungsten carbide and nickel-phosphorus alloy coexist in individual particles. The composite powder produced by a mechanical mix of these two substances consists of 30.about.95 percent by weight of tungsten carbide and valanced nickel-phosphorus alloy. This powder is sprayed to the ferrous base material, resulting in a uniform dispersion of both tungsten carbide and nickel-phosphorus, causing tight adhesion to the surface because the tungsten carbide and nickel-phosphorus alloy coexist in individual particles in the composite. A hard metal coating is produced having high hardness and excellent wear resistance, after the surface of the hard metal coating is heated and the high temperature of the nickel-phosphorus alloy causes a liquid phase under the condition of a nonoxidizing atmosphere. This hard metal coating is used for various kinds of the wear-resistant materials.

REFERENCES:
patent: 3974245 (1976-08-01), Cheney et al.
patent: 4025334 (1977-05-01), Cheney et al.
patent: 4173685 (1979-11-01), Weatherly

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