Modification of oxide film on Zircaloy-2 by magnesium ions in high temperature aqueous solution

•Reduction of oxidation kinetics observed for zircaloy-2 in the presence of Mg ions.•Mg-modified oxide had less steady state defects and higher oxide resistance.•The reduction in corrosion may be attributed to the stifling of charge transfer reaction for oxygen reduction reaction in presence of Mg -...

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