Effect of hot isostatic pressing on microstructure and mechanical properties of Ti6Al4V-zirconia nanocomposites processed by laser-powder bed fusion

•HIP post-treatment was performed on L-PBF fabricated Ti64 reinforced with nYSZ ceramic.•HIP post-treatment was successful in increasing the relative density of reinforced parts.•HIP processing parameters prevented β phase formation in reinforced parts.•HIP post-treatment generated thick α grains and homogeneous microstructure.•HIP post-treatment increased the plastic deformation of all parts without drastic strength decrease.