Friction Stir Processing of AA3105/SiC Composites Constructed Through the Sandwich Method: The Effects of FSP Variables

This study investigates the production of Al-SiC metal matrix composite by sandwich method as a manufacturing process. The SiC particles were applied through spraying method as a layer between AA3105 aluminum sheets, and then, the effect of FSP parameters was scrutinized. The results showed an enhanced degree of stirring and plastic deformation by increasing w/v ratio, which led to the refinement of the reinforcement particles through fracture and homogenization of the particle distribution in the matrix. The hardness of the AA3105/SiC metal matrix composites FSPed with lower w/v ratio was more scattered compared to the higher w/v ratio. It can be concluded that the FSP using sandwich method significantly improves the mechanical properties of the AA3105/SiC composite, with a maximum increase of 10% in UTS and 260% in toughness at 800 rpm and 31.5 mm/min.