Experimental investigation of Mg/SiC composite fabrication via friction stir processing

Friction stir processing has recently emerged as an effective alternative method for fabricating metal matrix composites. This paper presents an experimental investigation on the feasibility of using friction stir processing for fabricating Mg/SiC surface composites. The effects of the processing parameters, such as the rotational and translational speeds, and the groove geometry on the prepared composites have been examined. The thermal profiles, microstructure, and microhardness of the processed materials have been analyzed. The Mg/SiC surface composite was successfully fabricated using friction stir processing. A significant increase in the microhardness was attained within the stir zone due to grain refinement and the addition of SiC particles.