Abstract: Composite coatings are formed of a ceramic-type material such as chromium carbide over an intermediate layer of a ductile metal such as nickel on stainless steel turbine compressor blades. Such coatings were found to reduce the erosion by entrained particles to less than 10 percent that experienced by uncoated blades.
Type:
Grant
Filed:
November 12, 1974
Date of Patent:
April 20, 1976
Assignee:
Aerospace Materials Inc.
Inventors:
John E. Gates, Neil D. Veigel, Melvin F. Browning