Study on formation of β single phase of a Ti-10at%Mo-10at%Cr alloy on sintering and solution treatment

In this study, the formation of the β single phase of the Ti-10at%Mo-10at%Cr alloy on sintering and solution treatment is investigated. A powder metallurgy method is applied as a fabrication method. Alloying of metallic powders occurs on sintering. Formation of a mixture phase such as α', α'' and β is promoted with increasing the sintering time. Moreover, microstructural change to coarse plate-like microstructure and diffusion of alloying elements to Ti matrix occur when the sintering time prolongs. On the other hand, the β single phase can be obtained when the sample is subjected to solution treatment at 1373K for 3.6ks and water-quenching. The rapid cooling from the elevated temperature can retard the formation of the α' and α''.