Called as green engineering material, magnesium and magnesium alloy has been used in many applications and become the most important and potential lightweight material in21Century due to its special properties, such as high specific strength, good relative mechanical properties, good damping property and castability, perfect thermal conductivity and vibration reduction, easy to recycle. However, as construction material, one of its main drawbacks is high cost. Moreover, their poor corrosion resistance in co...