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Ni.sub.3 Al-based intermetallic alloys having improved strength above 850.degree. C.

United States Patent

6,106,640
August 22, 2000
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Intermetallic alloys composed essentially of: 15.5% to 17.0% Al, 3.5% to 5.5% Mo, 4% to 8% Cr, 0.04% to 0.2% Zr, 0.04% to 1.5% B, balance Ni, are characterized by melting points above 1200.degree. C. and superior strengths at temperatures above 1000.degree. C.
Liu; Chain T. (Oak Ridge, TN)
Lockheed Martin Energy Research Corporation (Oak Ridge, TN)
09/ 093,475
June 8, 1998
The United States Government has rights in this invention pursuant to contract no. DE-AC05-96OR22464 between the United States Department of Energy and Lockheed Martin Energy Research Corporation.