Research Progress on Microstructure and Properties ofSelective Laser Melted TC4 Titanium Alloy

Selective laser melting technique is a widely used laser additive manufacturing technology in preparation of precise and complex parts, which could realize the near net forming of complex parts. Through the forming process parameters, and solution and aging treatment methods, the research progress of microstructure and mechanical properties control of TC4 alloy formed by selective laser melting in the current stage is reviewed, and the future development direction is prospected.