EFFECT OF TWO TYPE SULPHATE REDUCING BACTERIA ON CORROSION OF A CARBON STEEL

The effect of two kinds of Sulphate Reducing Bacteria(SRB) on corrosion of a carbon steel in artificial seawaters was studied by immersion test and measurements of corrosion potentials and EIS.The bacteria were separated from accumulated water at the bottom of two different ships respectively.The results showed that two kind of SRB both shitted corrosion potentials to become much positive,but the variation of corrosion potentials caused by two kinds of SRB is different obviously,and thereby the difference of effect on corrosion was produced.