Investigation of network microstructure of TiB/Ti6Al4V-ELI composite manufactured with laser metal deposition

Abstract This work presents the microstructural investigation of an in situ synthesized TiB/Ti6Al4V-ELI composite that was manufactured with additive manufacturing (AM) technique known as laser metal deposition (LMD). A single-track sample by adding TiB 2 to Ti6Al4V-ELI at mass volume 5% and characterized for microstructure hardness. It found reaction promoted formation quasi-continuous network whiskers a needle-like morphology, martensitic α′ matrix. Furthermore, presented two different grain growth morphologies, smaller large grains observed top bottom sample, respectively, due heat travelling direction. high hardness 513 HV which reduced 483 bottom, growth. Graphical abstract