Electrochemical Corrosion Behavior of Q235 Steel in OPP-brine System

The inhibition behavior of OPP on Q235 steel in simulated brine saturated with CO2 was investigated by means of polarization curves and EIS.The experimental results indicated that OPP had a good corrosion inhibition for Q235 steel in simulated brine saturated with CO2,the inhibition efficiency over 95% could be obtained at atmospheric temperature.OPP inhibitor inhibited mainly the anodic reaction .The activation energy of corrosion reaction increased remarkably.