Effect of Detergent on Corrosion Behavior of Q235 Steel in Contaminated Soils

The corrosion behavior of Q235 steel in contaminated soils with different concentrations of detergent was studied by means of electrochemical impedance spectroscopy(EIS),scanning electron microscopy(SEM) and weight loss testing.The rusults showed that the influence of detergent on Q235 steel corrosion was dependent on the concentration of detergent. The detergent with low concentration can adsorb on the metal surface and reduce the corrosion rate of steel.With the increase of detergent concentration,the corrosion rate of Q235 steel can be accelerated.