中文摘要：

在一个在中立附近的 pH 土壤答案的 X80 管道钢的 MIC 当面并且减少硫酸盐的细菌(SRB ) 的缺席被电气化学的技术和 microbiological 测试监视。结果证明那个土壤答案更近到在管道附近的复杂土壤环境。SRB 的活动导致对低频率，电解质抵抗的减少和这部电影经常的电介质的改变的阶段反应的移动。SRB 的活动和代谢物影响钢的腐蚀行为。钢表面在接种 SRB 的土壤答案经历局部性的攻击，而仅仅细微的一致腐蚀发生在无菌的土壤答案。

英文摘要：

MIC of X80 pipeline steel in a near-neutral pH soil solution in the presence and absence of sulfate-reducing bacteria（SRB） was monitored by electrochemical techniques and microbiological tests. The results show that soil solution is more close to the complex soil environment around pipeline. The activity of SRB leads to the shift of the phase response to low frequency, the decrease of electrolyte resistance and the alteration of dielectric constant of the film. Both the activity and metabolite of SRB influence the corrosion behavior of the steel. The steel surface undergoes localized attack in the SRB-inoculated soil solution, whereas only slight uniform corrosion occurs in the sterile soil solution.