The wear and friction properties of the MgZnY alloys with a dispersion of the quasi-crystalline phase were investigated using the pin-ondisk configuration. The wear loss rates and the friction coefficient were obtained to be 1. /mm and 0.24 in the extruded alloy, respectively, under the dry wear condition. An effective method to enhance the wear properties in the magnesium alloys was determined to be a homogenous distribution of the quasi-crystalline phase in the coarse-grained matrix. Meanwhile, the grain refinement was not suitable due to grain boundary sliding, i.e., materials softening.
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