TiB reinforced Ti-6Al-4V matrix composites with improved short-term creep performance fabricated by laser powder bed fusion

This study investigates the short-term creep performance of laser powder bed fusion (L-PBF) fabricated Ti-6Al-4V (Ti64) and TiB-reinforced Ti64 matrix composite (TMC) parts. The TMCs were fabricated by L-PBF processing of 0.2wt.%B4C/Ti64 composite powder. The optimum set of process parameters was used to manufacture creep test specimens. In addition to the as-built scenario, supertransus heat treatment was conducted to eliminate the …