Wear resistant alloy coating containing tungsten carbide

Details Wear resistant alloy coating containing tungsten carbide Wear resistant alloy coating containing tungsten carbide

1977-09-23

1979-01-23

Steiner, Arthur J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Having metal particles

428680, 428932, 428937, B32B 1500, B32B 1516

Patent

active

041362306

ABSTRACT:
A method and coating material are provided for improving the wear and abrasion resistance of a composite nickel-base hard facing alloy applied to metal substrates comprising the system Ni-Cr-Si-B having dispersed therein particles comprising tungsten carbide, the improvement residing in controlling the average particle size of tungsten carbide to below 10 microns, e.g. 0.1 to 10 microns, preferably an average size ranging from about 2 to 8 microns (such as 2 to 6 microns), at an average interparticle spacing of less than 15 microns, and preferably less than 10 microns, e.g. up to 5 microns, the hard facing coating produced being further characterized in that the coating exhibits metallographically a substantially uniform structure at the surface thereof with respect to said tungsten carbide particles.

REFERENCES:
patent: 3238060 (1966-03-01), Quaas et al.
patent: 3313633 (1967-04-01), Longo
patent: 3378392 (1968-04-01), Longo
patent: 3455019 (1969-07-01), Quaas
patent: 3606359 (1971-09-01), McCormick
patent: 3617358 (1971-11-01), Dittrich
patent: 3655425 (1972-04-01), Longo et al.
patent: 3814447 (1974-06-01), Prasse et al.
patent: 3827920 (1974-08-01), Shimoda et al.
patent: 3936295 (1976-02-01), Cromwell et al.

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