中文摘要：

利用间歇式方法培养海水中硫酸盐还原菌和需钠弧菌，采用自腐蚀电位、极化曲线、冷场扫描电镜观察等方法，研究了304不锈钢在硫酸盐还原菌和需钠弧菌共同作用下的腐蚀电化学行为，分析了东海中的微生物腐蚀特征和机理．结果表明：硫酸盐还原菌和需钠弧菌在混合培养过程中相互促进生长，在混合微生物介质中的腐蚀速率大于在单一微生物中的腐蚀速率；混合微生物的共同作用使微生物膜加大加厚以及产生更多的腐蚀产物和代谢物，加速了不锈钢钝化膜的溶解，进而加速了304不锈钢表面的点蚀．

英文摘要：

Polarization curves, corrosion potential, scanning electron microscopy （SEM） were carried out to research the corrosion behavior of 304 stainless steel in the combination action of anaerobic SRB and faeultative anaerobic E natriegens, which were cultured in seawater in batch. The results show that SRB and V. natriegens promote each other＇s growth when cultivated in the mixed microbe medium, in which the rate of corrosion is higher than in the single microbe; the microbial film gets wider and thicker and corrosion products and metabolite are produced by combined action of the mixed microbe, which accelerates the passivation and pit corrosion to the 304 stainless steel.