Progress in the research of super-light high-strength Mg-Li based alloys and composites

Since the world war II, Mg-Li based alloys and composites, as an emerging super light structural metallic material, have been expected to be widely used in aerospace and civil fields, such as transportation, electronics packaging and sports industry for their high specific strength and specific stiffness, good damping and electromagnetic shielding properties. Firstly, the research status of Mg-Li based alloys and composites including applications, microstructures, mechanical properties and processing technologies were systematically introduced. Secondly, the progress in the research of intermetallics particles reinforced Mg-Li matrix composites were reviewed; Finally, the prospects on the research direction and development tendency of Mg-Li based alloys and composites were put forward based on the opportunities and problems in future.