▎ 摘　　要

The development of new engineering materials is in demand for different kinds of manufacturing sectors. In this context, metal matrix composites have been focused by many industrialists and recent researchers because of their various attractive features. In the present attempt, an aluminium-based hybrid metal matrix composites have been fabricated using stir casting process. AA2024 has been chosen as the base metal and tungsten carbide (WC) and graphene nanoparticles have been used as reinforcements. The size and shape of the reinforcement particles have been confirmed by means of SEM micrographs. By reinforcing the WC particles at different wt% such as 0, 1, 2 and 3, and reinforcing the graphene nanoparticles at 0, 0.15 and 0.3 wt%, 9 different composite samples have been prepared. The tensile, compression, hardness and impact tests have been performed on the prepared composite samples by following respective ASTM standards. The maximum tensile strength of 242.77 MPa and the maximum compressive strength of 398.05 MPa have been noted with the test samples. The tensile failure mechanism has been observed from the SEM micrographs and explained. The characterization study results revealed that there was a significant influence of adding WC and graphene nanoparticles on the mechanical properties of the proposed MMC.