The effect of Li concentration on the corrosion resistance of Mg alloys, additionally containing other alloying elements is not so straightforward . Common Mg alloys have various types of intermetallic particles (IMPs) in their microstructure, most of them being cathodic relative to the alloy matrix . The corrosion rate of Mg-Li alloys with low Li content is comparable to that of traditional Mg alloys without Li . The addition of a high amount of Li causes the formation of new types of Li-rich IMPs, commonly Mg-Li and Al-Li types ,