利用交流阻抗测试技术、扫描电镜及表面能谱、失重 法、微生物分析等方法，在室内模拟条件下研究了海泥中硫酸盐还原菌对碳钢腐蚀的影响，及在含和不含硫酸盐还原菌的海泥构成的宏电池腐蚀中碳钢的腐蚀行为.180天的试验结果表明，在有菌泥中碳钢的自然腐蚀速度均大于在灭菌泥中，两者相差35倍.说明海泥中硫酸盐还原菌增大了碳钢的腐蚀速率.在有菌和灭菌海泥构成宏电池时，有菌海泥中碳钢作为阳极，腐蚀速率比自然腐蚀状态下有所增大，加速率为119%.而在灭菌海泥中碳钢作为阴极，腐蚀速率比自然腐蚀状态下有所减小.
The effect of Sulfate Reducing Bacterial (SRB) on corrosion of carbon steel in seamud,and macrocell corrosion induced by seamuds with SRB and without SRB of carbon steel have been studied by using bacterial analyses,weight loss,Electrochemical Impedance Spectroscopy,Scanning Electron Microscopy (SEM) and EDXA.The corrosion rate of carbon steel in seamud with SRB was 3.5 times of those in seamud without SRB.Within a marocell consisted with seamud with and without SRB,the part of carbon steel immersed in seamud with SRB plays as anode,thus exhibits corrosion rate higher than that of free corrosion immersed in the same mud.
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