Coated product and process

Details Coated product and process Coated product and process

1984-12-12

1986-08-26

Silverberg, Sam

Metal treatment

Compositions

Heat treating

148 635, C23C 810

Patent

active

046080988

ABSTRACT:
Improved adherence of oxide wear layers on hard metal or cemented carbide substrates is attained by providing a thin surface-oxidized bonding layer comprising a carbide or oxycarbide of at least one of tantalum, niobium or vanadium, optionally adding aluminum to the bonding layer, and finally providing an outer oxide wear layer.

REFERENCES:
patent: 4018631 (1977-04-01), Hale
patent: 4239536 (1980-12-01), Yamamoto et al.
patent: 4357382 (1982-11-01), Lambert et al.

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