US 12,404,776 B2
Airfoil with protective coating
Matthew R. Gold, Indianapolis, IN (US); and Andrew Glucklich, Indianapolis, IN (US)
Assigned to Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US); and Rolls-Royce Corporation, Indianapolis, IN (US)
Filed by Rolls-Royce North American Technologies, Inc., Indianapolis, IN (US); and Rolls-Royce Corporation, Indianapolis, IN (US)
Filed on Apr. 11, 2024, as Appl. No. 18/633,432.
Claims priority of provisional application 63/496,170, filed on Apr. 14, 2023.
Prior Publication US 2024/0344462 A1, Oct. 17, 2024
Int. Cl. F01D 5/28 (2006.01); C23C 24/00 (2006.01)
CPC F01D 5/288 (2013.01) [C23C 24/00 (2013.01); F05D 2220/32 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of forming an article for a gas turbine engine, the method comprising depositing a powder to form a protective coating on a leading edge of an airfoil substrate, wherein the powder includes carbide particles in a metal matrix, wherein the carbide particles have an average particle size of 1 microns or less, wherein the protective coating includes the carbide particles in the metal matrix, and wherein the protective coating has a non-uniform thickness over a surface of the airfoil substrate.