Abstract
This work presents micro structural and tribological behaviour of Ti-6Al-4V fabricated by direct metal laser sintering technique.
The laser sintering was carried out at laser power of 170 W in an argon atmosphere. The microstructure, phase composition,
micro hardness and wear study were determined. It has been found that specimens built vertically (VB) contained vanadium
carbide (VC) and titanium oxide (TiO) phases in the present of α and β phases resulting in higher micro hardness as compared to
horizontal build (HB) specimens. Wear volume loss was determined in a dry sliding wear configuration. An increase in applied
load from 5 N to 25 N resulted in an increment in wear volume loss. The presence of delamination could be observed on the worn
surface of HB specimen.