Recent developments on corrosion behaviors of Mg alloys with stacking fault or long period stacking ordered structures

Corrosion is one of the most drawbacks which restricts the wide applications of Mg alloys. In the last decade, the corrosion behaviors of Mg alloys with stacking fault (SF) and/or long period stacking ordered (LPSO) structures have obtained increasing attention. However, the corrosion mechanism of the SF– or LPSO–containing Mg alloys has not been well illustrated and even reverse results have been reported. In this paper, we have reviewed recent reports on corrosion behaviors of SF– or LPSO–containing Mg alloys to better clarify and understand the significance and mechanism. Moreover, some deficiencies are presented and advises are proposed for the development of corrosion resistant Mg alloys with SF or LPSO structures.