Wear Properties of Hot-Extruded Pure Mg and Mg-1 wt.% SiC Nanocomposite

This paper presents the wear properties of hot-extruded pure Mg and its composite reinforced with 1 wt.% SiC nanoparticles. Wear tests were performed under dry and oil sliding conditions using ball-on-flat configuration. It was found that the nanocomposites show much lower wear loss mainly due to hardness improvement caused by the nanoparticles and grain refinement. The wear loss gradually decreases as the sliding speed increases and then it begin to rise beyond a critical value. With the wear temperature improves from 25 to 190 °C, wear loss of nanocomposites reduces.