High integrity CoCrAl(Y) coated nickel-base superalloys

Details High integrity CoCrAl(Y) coated nickel-base superalloys High integrity CoCrAl(Y) coated nickel-base superalloys

1977-06-09

1978-07-18

Steiner, Arthur J.

Stock material or miscellaneous articles

All metal or with adjacent metals

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

75171, 427 34, 427405, 428668, 428680, B32B 1520

Patent

active

041017153

ABSTRACT:
A high temperature oxidation and corrosion resistant coated nickel-base superalloy article comprising (a) a nickel-base superalloy article, and (b) a first CoCrAl(Y) coating composition consisting essentially of, on a weight basis, approximately 26-32% chromium, 3-9% aluminum, 0-1% yttrium, the rare earth elements, platinum or rhodium, and the balance nickel.

REFERENCES:
patent: 3676085 (1972-07-01), Evans et al.
patent: 3957454 (1976-05-01), Bessen
patent: 3978251 (1976-08-01), Stetson
patent: 3993454 (1976-11-01), Giggins, Jr. et al.
patent: 3998603 (1976-12-01), Rairden
patent: 4005989 (1977-02-01), Preston
patent: 4018569 (1977-04-01), Chang
patent: 4022587 (1977-05-01), Wlodek
patent: 4034142 (1977-07-01), Hecht
Rairden et al., "Coatings for Directional Eutectics", Final Report NAS3-17815, 7-25-76.
Rairden et al., Abstract re NAS3-16793 & NAS3-17815-For Presentation at the Third Conference on Gas Turbine Materials in a Marine Environment, 9/20-23/76.

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