Coated superalloy article

Details Coated superalloy article Coated superalloy article

B - Operations, Transporting

32

B

117/158

B32B 15/20 (2006.01) C23C 28/02 (2006.01)

Patent

CA 1069779

COATED SUPERALLOY ARTICLE ABSTRACT OF THE DISCLOSURE A protective coating is provided on gas turbine engine type superalloys comprising an interlayer adjacent the superalloy substrate a principal protective element of which comprises an aluminide of the basis metal of the substrate formed by the reaction of aluminum at high temper- ature with the substrate, and an overlayer comprising an MCrAlY-type coating where M is selected from the group consisting of cobalt, nickel and iron.

264401

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