INFLUENCE OF SULPHATE- REDUCING BACTERIA ON CORROSION BEHAVIOR OF A3 CARBON STEEL
硫酸盐还原菌对A3钢电化学腐蚀行为的影响

The electrochemical characteristics of A3 carbon steel in different Sulphate-Reducing Bacteria (SRB) media were studied by measuring Tafel polarization curves and electrochemical impedance spectrum (EIS).It was indicated that in SRB media without removing oxygen the corrosion potential ( E corr ) of A3 carbon steel decreased, the EIS was a single capacitive arc and polarization resistance ( R p) raised with the increase of SRB content.The results also showed that infiuence of SRB on the corrosion process varied with the qualities of biofilms.