Friction Welding Characteristics of TiAl Intermetallic Compound

Abstract

17C01S0zZS1 S14S7ZSS TiAl is one of the most promising materials with low density and high specific strength in the forthcoming age For structural applications of TiAl its loining process requires much improvements Friction welding brazing diffusion bonding and so on are the candidates for the joining process Among them friction welding is promising in view of its reliability quality assurance and productivity This paper describes the results of a basic research for examining the capability of friction welding of TiAl compounds with a nearly equiatomic composition The friction welding tests of TiAl to TiAI were carried out in air using a brake-type friction welding machine Diameters of TiAI specimens to be welded are 6 and 12 mm The friction welding conditions for obtaining reproducible joints with high strength were investigated