Superalloy coating composition with high temperature oxidation r

Details Superalloy coating composition with high temperature oxidation r Superalloy coating composition with high temperature oxidation r

1981-03-31

1984-05-08

Lewis, Michael L.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428636, 428639, 428656, 428678, 428937, B32B 1504

Patent

active

044475039

ABSTRACT:
Coatings for iron-, nickel- and cobalt-base superalloys and the resulting coated components having good high temperature oxidation resistance. The coatings consist essentially of, by weight, 5% to 50% chromium, 3% to 30% aluminum, 0.01% to 15% tantalum, up to 10% manganese, up to 5% tungsten, up to 12% silicon, up to 10% hafnium, up to 5% reactive metal from the group consisting of lanthanum, yttrium, and other rare earth elements, up to 5% of rare earth and/or refractory metal oxide particles, and the balance selected from the group consisting of nickel, cobalt and iron, and combinations thereof. Additions of titanium up to 5% and noble metals up to 15% are also contemplated.

REFERENCES:
patent: 4013424 (1977-03-01), Wildgoose et al.
patent: 4095003 (1978-06-01), Weatherly et al.
patent: 4124737 (1978-11-01), Wolfa et al.
patent: 4219592 (1980-08-01), Anderson et al.
patent: 4314007 (1982-02-01), Gessinger
patent: 4339509 (1982-07-01), Dardi et al.
Sims, C. T., et al., The Superalloys, pp. 490 to 495, John Wiley & Sons, (1972).

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