Research Progress in Powder Metallurgical Mg-based Materials

Magnesium and its alloys have many advantages, such as low density, high specific strength and stiffness, good damping and electromagnetic shielding performance, good liquid formability and machinability, and easy recycling. They exhibit splendid application prospects in aerospace, transportation and 3C products. However, the low absolute strength and poor heat and corrosion resistance of magnesium alloys limit their wider application. Research and engineering practice show that powder metallurgy process has great potential in improving mechanical properties and corrosion resistance of Mg-based materials. In this paper, the development of powder metallurgical Mg- based materials was reviewed, and their applications in biomedicine, automobile and hydrogen storage were briefly introduced. Finally, the development direction of powder metallurgical Mg-based materials and process research was prospected.