“…Mg-Li alloys, as the lightest structural materials, have widely application prospects in aerospace, transportation, electronic, and other industries owing to the inherent superior properties, such as good dimensional stability, high specific stiffness, good machining property, electromagnetic shielding and damping characteristics, low density and high strength-to-weight ratio, good magnetic screen, and shock resistance ability [1][2][3][4][5][6][7]. Unfortunately, extremely poor corrosion resistance that results from the high chemical reactivity of magnesium and lithium, which reduces the lifetime of structural components, is a critical limitation which restricts its widespread use in many practical applications of Mg-Li alloys, especially in aggressive environments.…”