Abstract
In this research, wear and friction properties of a magnesium alloy have been studied in pin-on-disk under dry condition at room temperature. Used specimens are ZK60 magnesium alloys that have different grain sizes, and they are examined to investigate the influence of grain size exerted on friction and wear properties. As a result, it was proved that wear-resistance improved with increasing grain size. The coefficient of friction was about 0.3 for the coarse-grained alloy, and decreased with refining the grain structure.