Yttrium enriched aluminide coatings

Details Yttrium enriched aluminide coatings Yttrium enriched aluminide coatings

1986-11-03

1989-05-30

Silverberg, Sam

Coating processes

Coating by vapor, gas, or smoke

Metal coating

75253, C23C 1048

Patent

active

048350117

ABSTRACT:
Methods are described for forming an yttrium enriched aluminide coating on the surface of a nickel or cobalt base superalloy article. In one preferred embodiment, a pack mixture for forming the coating consists essentially of, by weight percent, 5-35 of an Al-Y-Si alloy, 1-20 CoI.sub.2, balance Y.sub.2 O.sub.3.

REFERENCES:
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patent: 2801187 (1957-07-01), Galniche
patent: 3625750 (1971-12-01), Baranow et al.
patent: 3779719 (1973-12-01), Clark
patent: 3794511 (1974-02-01), Baranow
patent: 3993454 (1976-11-01), Giggins, Jr. et al.
patent: 3996021 (1976-12-01), Chang et al.
patent: 4123595 (1978-10-01), Chang
patent: 4156042 (1979-05-01), Hayman et al.

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