Abstract
AbstractIn some areas, the soil is getting more and more acidic due to acids deposition. It is imperative to investigate the soil corrosion performance of underground structures. As soil is very complex, the corrosion investigation and understanding of soil buried structures are quite difficult. In this study, the corrosion performance of Q235 steel in simulated Yingtan soil solutions with pH 3.0, 4.0, 5.5, and 7.0 was investigated by weight loss test and electrochemical test including potentiodynamic polarization curves and electrochemical impedance spectroscopy, as well as corrosion process was discussed. All the tests indicated that the corrosion rate of Q235 steel in simulated soil solution was closely related to its pH value. The corrosion rate decreased with increasing pH from 3.0 to 7.0.
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