Today's surface modification methods include friction stir processing (FSP). using a combination of heat generated by the friction between the tool and the workpiece, intense plastic deformation, and stirring to mix the matrix material. To create a consistent and dense microstructure, the FSP continuously improves the material's surface characteristics. In addition, this unique method enables the creation of surface material matrix composites by incorporating various reinforcement particles (MMC). The importance of various types of reinforcing particles during FSP and their effects on surface properties like hardness, tensile strength, and wear behaviors have recently been the subject of a lot of research. Under various applied weights, sliding distances, and sliding velocities, the manufactured copper-cerium oxide surface composite was put through a sliding wear test. The FSP-ed surface composites had the lowest wear rate of 0.0039 mm3/N-m, and SEM analysis shows that the delamination layer and peeled-off behavior were seen on the worn-out surfaces.
Keywords: copper, cerium oxide, friction stir processing, surface modification, wear.