Author(s)

Yanbo Tong

Corresponding Author

Yanbo Tong

Abstract

Medical magnesium alloys have significant application potential in orthopedics and cardiovascular fields due to biodegradability, mechanical property matching, and biosafety. But they still face problems such as insufficient biocompatibility, excessively fast corrosion rate, and poor interfacial bonding. Surface modification is the core means to optimize its performance, and the core goals focus on improving biocompatibility, regulating corrosion behavior, and matching mechanical properties. This paper reviews four main technologies: coatings, chemical conversion films, surface alloying, and physical modification, and proposes application strategies such as material adaptation, process optimization, and element selection. Current technologies face challenges such as insufficient long-term biological stability, difficulty of multi-performance synergy, and the high cost of large-scale application. In the future, breakthroughs are needed in the directions of intelligent modification systems, green environmentally friendly processes, and multidisciplinary integration, to promote clinical application.

Keywords

Medical Magnesium Alloy Implants; Surface Modification; Biocompatibility; Regulating Corrosion