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Gaseous modification of MCrAlY coatings

United States Patent

6,129,988
October 10, 2000
View the Complete Patent at the US Patent & Trademark Office
The present invention generally describes methods for modifying MCrAlY coatings by using gaseous carburization, gaseous nitriding or gaseous carbonitriding. The modified MCrAlY coatings are useful in thermal barrier coating systems, which may be used in gas turbine engines.
Vance; Steven J. (Orlando, FL), Goedjen; John G. (Oviedo, FL), Sabol; Stephen M. (Orlando, FL), Sloan; Kelly M. (Longwood, FL)
Siemens Westinghouse Power Corporation (Orlando, FL)
09/ 134,049
August 14, 1998
GOVERNMENT INTEREST This invention was made with government support under Contract No. DE-FC21-95MC32267, awarded by the United States Department of Energy. The government has certain rights in this invention.