Overlay coatings with high yttrium contents

Details Overlay coatings with high yttrium contents Overlay coatings with high yttrium contents

C - Chemistry, Metallurgy

22

C

117/230, 75/34

C22C 19/05 (2006.01) C23C 4/08 (2006.01) C23C 30/00 (2006.01) C30B 33/00 (2006.01)

Patent

CA 1209827

Overlay Coatings With High Yttrium Contents Abstract Improved coating compositions are described for the protection of superalloys at elevated temperatures. The coatings of the NiCrAlY or NiCoCrAlY type are signifi- cantly improved by the use of higher levels of yttrium.

407900

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