Experimental investigation on Mechanical and Metallurgical Properties of Titanium Based Composite Used for Aerospace Applications

Abstract

Titanium matrix composites have important and wide applications in the aerospace industries due to light weight and strength. The current work was focused on powder metallurgy of reinforced titanium matrix composite with graphene. Ti-6Al-4V alloy and graphene powders were used as matrix and reinforcement respectively. The wt. % of Ti-6Al-4V alloy and graphene powders were 99.5% and 0.5% respectively. Spark plasma sintering technique was used for fabrication of composite. The mixture of powder sintered at 1100°C at an applied load of 60 MPa under 6 Pa vacuum with heating rate of 150 °C/min and holding time of 15 min was used. The microstructural observation was performed on SEM and optical microscope. The SPS process leads to high densification of composite within short time and produces good surface. The hardness of the composite improved significantly by adding reinforcement.