C. Callendar, W. Gale, Auburn University, Auburn, AL; D. Butts, Plasma Processes, Inc., Huntsville, AL

Summary: Gamma-TiAl alloys offer attractive properties, such as good oxidation, corrosion and creep resistance at elevated temperatures up to around 800°C. Effective implementation of gamma-TiAl alloys is likely to require fabrication of complicated geometries for which a high performance metallurgical joining technique must be developed. This paper discusses both empirical and mechanistic studies conducted to determine a suitable transient liquid phase bonding technique for a current generation gamma-TiAl alloy - Gamma Met PX.