Flame spray oxidation and corrosion resistant superalloys
AssigneeGeneral Electric Company
InventorsHarold H. Hirsch, John R. Rairden, III
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Abstract
A flame sprayed high energy milled powder coated article comprising a superalloy substrate and a coating consisting of chromium and at least one element selected from iron, cobalt or nickel. Optionally the coating can contain other elements, e.g., aluminum, carbon, yttrium or the rare earth elements.
Claims24
An article comprising a coated superalloy body, said body having been flame spray coated with high energy milled, mechanically alloyed powder particles having an average particle size of less than about 44 microns.
The method of improving the high temperature oxidation and corrosion resistance of a superalloy body which comprises flame spraying the superalloy body with high energy milled, mechanically alloyed powder particles having an average particle size of less than about 44 microns.
Dependencies are inferred from the claim text.