Effect of Vanadium Content on Wear and Corrosion Resistance of Magnesium Alloy for Mechanical Shell

The microstructure,wear and corrosion resistance of magnesium alloy shell with different vanadium content were tested and analyzed.The results show that with increasing vanadium content from 0 to 0.7% of the sample,the grains are refined,and the wear volume decreases firstly and then increases.Meanwhile,the corrosion potential of the sample shifts in positive direction first and then in negative direction,with both of the wear resistance and corrosion resistance increasing first and then decreasing. The optimized vanadium content is 0.5% for the magnesium alloy shell.