Method of forming aluminide coatings on nickel-, cobalt-, and ir

Details Method of forming aluminide coatings on nickel-, cobalt-, and ir Method of forming aluminide coatings on nickel-, cobalt-, and ir

1975-05-27

1976-09-07

Mack, John H.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

29194, 29196, 29197, 427252, 427405, 428336, 204298, C23C 1500, C23C 1302, B23P 320

Patent

active

039792730

ABSTRACT:
A method of coating is described wherein a nickel-, cobalt- or iron-base alloy is provided with a oxidation and sulfidation-resistant coating by depositing, to a thickness greater than one micron but less than three microns, 90-97%, by weight, of a platinum group metal selected from the group consisting of platinum, palladium, rhodium, ruthenium, osmium and iridium and 3-10%, by weight, of an active metal selected from the group consisting of Y, Hf and Zr onto the alloy and subsequently aluminizing the coated substrate.

REFERENCES:
patent: 3677789 (1972-07-01), Bungardt et al.
patent: 3692554 (1972-09-01), Bungardt et al.
patent: 3713901 (1973-01-01), Blumenthal et al.
patent: 3819338 (1974-06-01), Bungardt et al.

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