Abstract
The electrochemical corrosion behavior of Mg–6Al–0.4Mn and Mg–6Al–4RE–0.4Mn (RE = Mischmetal) alloys is investigated in 3.5% NaCl solution. The results of corrosion process, polarization behavior, and electrochemical impedance spectroscopy of the alloys reveal that Mg–6Al–4RE–0.4Mn exhibits enhanced corrosion resistance. The addition of RE stabilizes the solid solution and modifies the passive film through a finer microstructure.
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