Research Progress on Ti-Al Alloy Prepared by High-Energy BeamAdditive Manufacturing Technique

Selective laser melting and electron beam selective melting additive manufacturing are ideal advanced high energy beam additive manufacturing techniques. The selective laser melted and energy beam selective melted Ti-Al alloy had a fine microstructure, and better mechanical properties than the cast alloy. The alloy can obtain good high-temperature creep resistance and ductility by reasonable heat treatments after the forming. The high energy beam additive manufacturing technique can solve the traditional forming problem of Ti-Al alloy component. The research progress on the preparation of Ti-Al prealloyed powder, the process and application of selective laser melting and electron beam selective melting, and the microstructure and properties of Ti-Al alloy are reviewed. The future research direction of Ti-Al alloy prepared by high-energy beam additive manufacturing is prospected.