Corrosion of low carbon steel in atmospheric environments of different chloride content

摘要

This investigation aims to analyze the effect of Cl~- ion on the atmospheric corrosion rate of carbon steel. The metal samples were exposed to a marine atmospheric environment (95 and 375 m from the sea line) as well as an industrial atmospheric environment. The effects of Cl~- ions on the protective characteristics of the rust layers were assessed by 1R spectroscopy, SEM-EDAX analyses, linear polarization resistance and electrochemical impedance spectroscopy (EIS). The results show that Cl~- ion influences the corrosion rate, as well as the morphology and composition of the rust layer.