The solid solution and precipitations of alloying elements can change the chemical potential of the primary phase and the species of the second phase, which can significantly affect the micro-galvanic corrosion behaviors of magnesium alloys. The influence of solid solution and precipitation on corrosion resistance of magnesium alloys was reviewed.Based on the thermodynamics and dynamics analysis, the effect of solution and precipitation behavior on corrosion behavior of common magnesium alloys was summarized.The necessary conditions for a good candidate material of magnesium alloy were pointed out, and the design method for improving the intrinsic corrosion resistance of magnesium alloy was proposed.Future research should focus on reducing the corrosion rate of magnesium alloys and expanding the application range of magnesium alloys by regulating the types and quantities of alloying elements in magnesium alloys.
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