Improving the Microstructure and Mechanical Properties of Aluminium Alloys Joints by Adding SiC Particles During Friction Stir Welding Process

This study experimentally investigates the influence of adding SiC on microstructure and mechanical properties aluminium alloys welded joints. The particles have been directly added into a zone friction stir welding (FSW) to make (AA6061–AA2024) composites material. Results show that effect refines grain size in by preventing its growth during FSW process. has significant thermomechanical resulting from restricting grains. indicated microhardness joints is increased 44 86 HV 9.2% as compared obtained without including under same conditions. It observed tensile strength enhanced when amount are up 6.9%.