Platinum-rhodium-containing high temperature alloy coating

Details Platinum-rhodium-containing high temperature alloy coating Platinum-rhodium-containing high temperature alloy coating

1975-02-21

1976-12-28

Rutledge, L. Dewayne

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29197, 427252, B32B 1520

Patent

active

039999564

ABSTRACT:
Aluminized nickel-base, cobalt-base and nickel-cobalt-base heat resistant alloy substrates are provided in which, prior to aluminizing the substrate, the substrate is provided with a thin coating of rhodium and thereafter a thin coating of platinum, the coatings being diffusion bonded to the substrate, such that when the prepared substrate is aluminized by pack cementation, a compositely structured coating is obtained characterized by improved resistance to high temperature oxidation and sulfidation.

REFERENCES:
patent: 3494748 (1970-02-01), Todd
patent: 3677789 (1972-07-01), Bungardt et al.
patent: 3692554 (1972-09-01), Bungardt et al.
patent: 3819338 (1974-06-01), Bungardt et al.

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