Coated product and process

Details Coated product and process Coated product and process

1981-12-16

1984-12-25

O'Keefe, Veronica

Metal treatment

Compositions

Heat treating

428627, 428629, 428623, 428632, 428633, 428925, 428932, 428698, 428215, 428699, 428700, B32B 1504

Patent

active

044901917

ABSTRACT:
Improved adherence of oxide wear layers on hard metal or cemented carbide substrates is obtained 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: Re29420 (1977-09-01), Lindstrom et al.
patent: 3640689 (1972-02-01), Glaski et al.
patent: 3736107 (1973-05-01), Hale
patent: 3836392 (1974-09-01), Lux et al.
patent: 3837896 (1974-09-01), Lindstrom et al.
patent: 3955038 (1976-05-01), Lindstrom et al.
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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