Ductility and Fractography of AL-7075-BA Hybrid Composites

Aluminium 7075 alloy (Al-7075) has multiple applications from 1943, it needs improvements in mechanical properties of alloy. Past few years enhancing alloy properties by adding agricultural waste ashes, graphite (Gr), and SiC etc. as reinforcements. In present investigation Al-7075 alloy used as base material, reinforcements are sugarcane bagasse ash and Gr materials. 1, 3, 5, 7, 9, 11 & 13 wt% of BA reinforcement added in base metal to prepare Al-BA composites by using stir casting technique. The Gr reinforcement added in base metal 5wt% kept constant with various wt% of BA composites, which shows more enhancements in the mechanical properties of material. The mechanical properties analysed such as ductility by using percentage elongation and micro-fracture using SEM. Results are observed that, the mechanical strength increased i.e. ductility and fracture strength with increasing wt% of percentage BA reinforcement in base material of composite. Further, when 5% Gr particles added ductility, fracture strength and interfacial bonding strength increased in hybrid composites.