Investigation of the microstructure evolution of TiC/Ti-6Al-4V composite manufactured by laser melting deposition

This study investigated the microstructure evolution of TiC/Ti-6Al-4V matrix composite produced using a 1073 nm continuous wave (CW), IPG Ytterbium fibre laser. The influence thermal gradient, overlap, and re-melting previous layers on TiC/Ti6Al4V samples was analyzed scanning electron microscope (SEM). showed that are composed undissolved TiC, in-situ TiC (eutectic primary TiC), α Ti β Ti. While martensite observed Ti-6Al-4V alloy samples. It single-track single-layer consists blocky granular eutectic chain-shaped dendritic phases. cube sample shows TiC. Dendritic is in all