Microstructure and tensile behaviour of B4C particles reinforced Al6061 matrix composites

Abstract

In an ongoing work an exertion is made to get fabrication of aluminium 6061 matrix composites reinforced with 8 µm average size of 7 wt% B4C particulates of with two stage melt stirring fabrication technic and are examined under scanning electron microscopy, Energy Dispersive X-ray Spectroscopy, and X-ray diffractometer to characterize the surface morphology, chemical elements and its percentage of distribution in addition to phase elements of composites. Then evaluation of prepared composite for Hardness and Tensile properties using micro hardness testing machine and UTM machine at room temperature are carried as per ASTM standards and found that Al6061-7 wt% B4Cp composite material’s hardness, Yield stress and ultimate tensile strength are magnified by 24.15%, 15.17% and 23.577% respectively while percentage of elongation is sink by 39.07% as compare to Al60610 alloy. Finally, the tensile facture surface was examined for micro mechanisms of failure and its surface morphology stipulates ductile kind of fracture and frail interface leading to facture mechanism.