Superalloy coating composition with high temperature...

Details Superalloy coating composition with high temperature... Superalloy coating composition with high temperature...

C - Chemistry, Metallurgy

22

C

117/226, 75/7.1

C22C 38/00 (2006.01) C22C 19/00 (2006.01) C22C 38/18 (2006.01) C23C 30/00 (2006.01) F01D 25/00 (2006.01)

Patent

CA 1194345

Abstract of the Disclosure Coatings for iron-, nickel- and cobalt-base superalloys and the resulting coated components having good high temperature oxi- dation resistance. The coatings consist essentially of, by weight, 5% to 50% chromium, 3% to 30% aluminum, 0.01% to 15% tan- talum, up to 10% manganese, up to 5% tungsten, up to 12% silicon, up to 10% hafnium, up to 5% reactive metal from the group con- sisting 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.

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