Résumé
Magnesium alloys have been a hotspot in the field of implanted medical devices due to their biodegradable absorbability, excellent mechanical properties and good biocompatibility.The reduction in their rapid corrosion rates becomes the key to the application of implant medical device materials.In this paper, the latest research progress and the existing problems of magnesium alloys as the material for implantation of medical devices in the fracture internal fixation, bone tissue porous scaffold, and cardiovascular stent are reviewed.Improving corrosion resistant of magnesium alloys by means of alloying, improving purity, surface modification,rapid solidification, deformation processing, non crystallization and preparation of nano alloy technology in body fluid are expounded, and research direction and application prospect of magnesium alloys in the field of implanted medical devices are also expected.