A Review on Selective Laser Melting of Ti6Al4V: Microstructure and Properties
Selective Laser Melting (SLM) is an additive manufacturing process capable of melting and fusing metallic powders using laser. The required model is formed into its required shape by simultaneous melting and fusing the material present in powder form inside and among the various layers making the complete component. The selective laser melting (SLM) process allows for manufacturing most complex shapes using a variety of common materials. The processing parameters of selective laser melting were thus investigated in this study. The microstructure of the products formed by selective laser melting of Ti6Al4V was studied and their high temperature creep properties were improved. Study was made to reduce the surface roughness. The tensile and fatigue properties of the formed products were studied and also the effects of heat treatment on the formed products were taken into account. Here various parameters affecting the process and its application in manufacturing of titanium alloys for various applications were also discussed. In this paper an attempt has been made to bring out the latest trends in the SLM process.
Keywords - Creep Properties, Fatigue, Tensile, Surface Roughness