Superalloy coating composition with oxidation and/or...

Details Superalloy coating composition with oxidation and/or... Superalloy coating composition with oxidation and/or...

C - Chemistry, Metallurgy

22

C

75/1, 13/12, 117

C22C 30/00 (2006.01) C22C 19/00 (2006.01) C22C 19/05 (2006.01) C22C 27/06 (2006.01) C23C 4/08 (2006.01) C23C 30/00 (2006.01) C30B 11/00 (2006.01)

Patent

CA 1169267

- 1 - ABSTRACT SUPERALLOY COATING COMPOSITION WITH OXIDATION AND/OR SULFIDATION RESISTANCE Coatings for iron-, nickel- and cobalt-base super- alloys. The coatings are applied in order to provide good oxidation and/or sulfidation and thermal fatigue resistance for the substrates to which the coatings are applied. The coatings consist essentially of, by weight, 10 to 50% chrom- ium, 3 to 15% aluminum, 0.1 to 10% manganese, up to 8% tanta- lum, up to 5% tungsten, up to 5% reactive metal from the group consisting of lanthanum, yttrium and other rare earth elements, up to 5 percent of rare earth and/or refractory metal oxide particles, up to 12% silicon, up to 10% hafnium, and the bal- ance 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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