The ZK60 Mg alloys were fabricated by powder metallurgy

and then subjected to equal channel angular pressing at varied temperature and passes.Effects of pressing temperatures and passes on mechanical properties and microstructure of Mg alloys were investigated.The results reveal that the ECAP processing of the ZK60 can be realized at a higher temperature

and tensile strength and elongation of the ZK60 alloy exhibit desirable at 260 ℃.An equiaxed ultra-fine grained structure with the mean grain size less than 10μm can be observed after three passes at 260℃

and the tensile strength and elongation of the extruded alloys reach 341.5MPa and 29.3%

respectively.The results show that the appropriate pressing temperature and passes are beneficial to improving mechanical properties of ZK60 alloys.