Structural investigation of selective laser melting and electron beam melting of Ti-6Al-4V using neutron diffraction

Neutron diffraction study of poly-crystalline bulk samples of Ti-6Al-4V, prepared using selective laser melting (SLM) and electron beam melting (EBM), and of their ingredient powders, is reported. Both the SLM and EBM samples do not contain the macro- and micro-strain, found in the ingredient powder particles. In addition, the micro-structure of the EBM sample is found free of preferential orientation, whereas in the SLM sample significant preference towards the hexagonal basal plane is found. (C) 2016 Published by Elsevier B.V.