Magnesium-lithium alloy

lightweight metal with high specific strength and ductility

is one of the most attractive structural and functional materials for the automotive

aerospace

and defense industries. However

its industrial applications are severely limited by its low strength

and low modulus. Hence

the preparation and processing (alloying

casting

heat-treatment and compounding)

and research progress of various types of high-strength

and high-modulus casting Mg–Li alloys were summarized in this paper

which provides new ideas for researchers to develop high-strength and high-modulus Mg–Li alloys. Meanwhile

the advantages and limitation of preparation processes of different types were discussed

and the future development prospect and research direction were proposed. Finally

the development direction of the high-strength and high-modulus casting magnesium-lithium alloy is concluded.