The Volta potential distribution map of the AZ31-8Li alloy (Fig. ) clearly indicated the presence of two phases, also seen in the SEM observations (Fig. and ). The difference in the Volta potential between the two phases varied in the range 210-310 mV, corresponding well to the literature data and the expected difference between α-Mg (lower Volta potential, darker areas) and β-Li (higher Volta potential, lighter areas) phases based on the difference in standard electrode potentials of Mg (-2.7 V) and Li (-3.04 V). It can be also concluded that in this alloy β-Li phase will serve as the anodic phase and will be more prone to localized corrosion.