Abstract: The research theory and development of rapidly solidified magnesium alloy were reviewed. The extension of solid solubility of α(Mg), the formation of new dispersed phases, the grain refinement and corrosion resistance of rapidly solidified magnesium alloy were explained. Three main categories of rapid solidification techniques, such as gas-blast sputtering, chill-block melt-spinning and laser surface melting, were described. The structures and properties of different alloys produced via such three methods were given examples to explain the effects of rapidly solidified techniques on magnesium. The rapid solidification is an important technique that can produce new and high performance magnesium alloys in industry.

Key words: magnesium alloy; rapid solidification; microstructure; mechanical properties