Corrosion inhibition and adsorption behavior of methionine on Mg- Al-Zn alloy

摘要

Corrosion inhibition behavior of Mg-Al-Zn alloy was investigated by different electrochemical techniques in neutral solutions containing chloride ions at different concentrations. The corrosion rate was calculated in the absence and presence of methionine as an environmentally safe corrosion inhibitor using polarization and impedance techniques. The results reveal that methionine inhibits the corrosion reaction by adsorption onto the metallic surface. Polarization results revealed that methionine acts as an anodic inhibitor.