Effects of Rare Earth Element Y and Nd on the Microstructure and Properties of ZM5 Magnesium Alloy
Four ZM5 magnesium alloys containing rare earth elements Y and Nd were produced by cast.In cast process,the ZM5 magnesium alloy used as matrix alloy.In these alloys,the content and proportion of Y and Nd were different.The microstructure of as cast magnesium alloys were investigated by OM and XRD,the mechanical properties and corrosion velocity as solid solution alloys were tested by tensile experiment and corrosion experiment.The results show that the microstructures,mechanical properties and corrosion velocity of the ZM5 magnesium alloy containing rare earth depended on the proportion of Y and Nd.And in all magnesium alloys investigated in this paper,the good compositive property on microstructures,mechanical properties and corrosion velocity will appear when add 2%Y and 1%Nd in to the ZM5 magnesium alloy.