Abstract
The corrosion rate of magnesium and some its alloys was investigated by EIS and potentiodynamic methods. It is shown that the corrosion rate value is in the range from units to hundredths of mm×year-1 and is mostly consistent with the data of other researchers. A significant shift in the corrosion potential in the anode direction after cathodic polarization is explained by the kinetic difficulties of the corrosion reaction in the layer of reaction products. A corrosion diagram is constructed, overvoltages of hydrogen evolution and dissolution of magnesium are estimated.
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