Effects of advanced forming and processing techniques on corrosion behavior of magnesium alloys: A review

Magnesium (Mg) alloys, featuring low density, high specific strength, and favorable biocompatibility, face limitations in applications due to their poor corrosion resistance. Forming and processing techniques can affect the corrosion behavior of Mg alloys by regulating microstructural characteristics, such as grain size, second phases, texture, dislocation density, and surface properties, etc. Therefore, recent studies on the corrosion properties of Mg alloys prepared by advanced forming and processing techniques should be reviewed. In this review, the effects of special casting, additive manufacturing, severe plastic deformation, and surface physical modification techniques on corrosion behaviors of Mg alloys are discussed. The underlying corrosion mechanisms are systematically analyzed, and suggestions for future research avenues are proposed. • The effects of advanced forming and processing techniques on the corrosion behavior of Mg alloys are reviewed. • Techniques including special casting, additive manufacturing, severe plastic deformation, and surface physical modification are discussed. • Microstructure-corrosion relationships for these techniques are analyzed. • Future corrosion research of Mg alloys fabricated using advanced techniques is proposed.