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Titanium aluminide intermetallic alloys with improved wear resistance

United States Patent

July 8, 2014
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The invention is directed to a method for producing a titanium aluminide intermetallic alloy composition having an improved wear resistance, the method comprising heating a titanium aluminide intermetallic alloy material in an oxygen-containing environment at a temperature and for a time sufficient to produce a top oxide layer and underlying oxygen-diffused layer, followed by removal of the top oxide layer such that the oxygen-diffused layer is exposed. The invention is also directed to the resulting oxygen-diffused titanium aluminide intermetallic alloy, as well as mechanical components or devices containing the improved alloy composition.
Qu; Jun (Knoxville, TN), Lin; Hua-Tay (Oak Ridge, TN), Blau; Peter J. (Knoxville, TN), Sikka; Vinod K. (Oak Ridge, TN)
UT-Battelle, LLC (Oak Ridge, TN)
12/ 416,323
April 1, 2009
This invention was made with government support under Contract Number DE-AC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC. The U.S. government has certain rights in this invention.