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中文摘要：
利用极化曲线、交流阻抗、扫描电镜等方法，研究了X70管线钢在沈阳污染土壤中的腐蚀行为．结果表明，在接菌SRB的污染土中X70管线钢的腐蚀速率更高，且用肉眼可以看到去除腐蚀产物的X70钢的表面出现点蚀的痕迹．在接菌SRB和未接菌时X70管线钢在污染土中的交流阻抗谱图均表现为单一的容抗弧．
英文摘要：
Corrosion behavior of X70 pipeline steel in polluted soil inoculated with and without SRB were studied by using polarization curve technique, electrochemical spectroscopy （EIS） and scanning electron microscopy（SEM）. The results shown that the corrosion rate of X70 pipeline steel in polluted soil inoculated with SRB is larger than that without SRB. The EIS spectra exhibit single-capacitive loop model in polluted soils with and without SRB. The impedance of X70 pipeline steel in soil with SRB is smaller than those in soil without SRB.
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