US 7,455,890 B2
Ion implantation of turbine engine rotor component
Ramgopal Darolia, West Chester, Ohio (US); and Michael James Weimer, Loveland, Ohio (US)
Assigned to General Electric Company, Schenectady, N.Y. (US)
Filed on Aug. 05, 2003, as Appl. No. 10/634,543.
Prior Publication US 2005/0031794 A1, Feb. 10, 2005
This patent is subject to a terminal disclaimer.
Int. Cl. C23C 14/48 (2006.01); C23C 14/16 (2006.01)
U.S. Cl. 427—528  [427/531; 427/527] 17 Claims
OG exemplary drawing
 
1. A method for improving corrosion resistance of a turbine engine rotor component, wherein the rotor component is a compressor disk, a compressor seal element, a turbine disk or a turbine seal element, said rotor component being made of a nickel-base alloy and having a service operating temperature of from about 540° C. to about 815° C., said rotor component not being coated to protect it from oxidation and corrosion, the method comprising the step of implanting aluminum ions, chromium ions, or mixtures thereof into the surface of the rotor component.