Effects of various reinforcements on mechanical behavior of AA7075 hybrid composites

Aluminium hybrid composites are most demanding composites in field of advanced lightweight materials because of their low density, good mechanical properties, better wear and corrosion resistance, low coefficient of thermal expansion as compared to conventional metals. Their low cost of production and excellent mechanical properties makes them the most potential materials for advanced aerospace and automotive applications. Among various grades of Aluminium alloy, 7075 grade is one of the most prominent and used for fabricating single and hybrid reinforced composites. Most of researchers reported the microstructural, physical, optical and mechanical characteristics of Aluminium 7075 hybrid composites. The reinforcements utilised for hybrid composites includes Al2O3, SiC, SiO2, B4C, TiC, TiO2, Graphite WC, Ti, Cr, Cast Iron, Fly ash, Red Mud, Rice husk ash, Bagasse ash . This review article highlights about various combination of reinforcements used so far and their effects on mechanical characteristics of 7075 hybrid composites. (C) 2019 Elsevier Ltd. All rights reserved.