High temperature nicocraly coatings

C - Chemistry – Metallurgy – 22 – C

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C22C 19/00 (2006.01) C22C 19/05 (2006.01) C22C 19/07 (2006.01) C22C 27/06 (2006.01) C22C 30/00 (2006.01) C23C 14/16 (2006.01) C23C 30/00 (2006.01)

Patent

CA 1045421

ABSTRACT OF THE DISCLOSURE A highly ductile coating for the nickel- and cobalt- base superalloys having long term elevated temperature oxidation-erosion and sulfidation resistance and diffusional stability consists essentially of, by weight, 11-48% Co, 10-40% Cr, 9-15% Al, 0.1-1.0% reactive metal selected from the group consisting of yttrium, scandium, thorium, lanthanum and the other rare earth elements, balance essentially Ni, the nickel content being at least about 15%.

220942

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