Study on Mechanical Behaviours of Newly Formulated Aluminium Alloy (6082) Reinforced with Boron Carbide and Rice Husk Ash

This paper investigates the mechanical properties like tensile strength, hardness, porosity and ductility of newly formulated Al6082-B₄C -rice husk ash (RHA) hybrid metal matrix composite. In this investigation we added reinforcement in different weight ratios in Al6082. The reinforcement weight ranges from 2.5 to 20 wt% of B₄C along with 2.5–20)wt% of RHA are prepared by using powder metallurgy technique. The scanning electron microscopy (SEM) analysis is used to analyse the microstructure of the prepared Al6082 hybrid metal matrix composite. The mechanical properties like hardness, tensile strength, ductility and porosity tested using standards methods and compared with the theoretical calculated value. The maximum hardness is achieved in (Al6082-15wt% B₄C–5wt%RHA) which shows the highest hardness of 74 BHN. The maximized tensile strength 167.5 MPa is achieved at Al6083-15wt% of B₄C and 5% of RHA. The maximum ductility is observed at Al6082-12.5 wt% RHA and 7.5 wt% B₄C. The theoretical specific strength is compared with the newly formulated metal matrix composite.