| 浸泡时间对X60钢SRB电化学腐蚀行为影响研究 |
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| 引用本文： | 赵艳亮,柳伟,路民旭.浸泡时间对X60钢SRB电化学腐蚀行为影响研究[J].装备环境工程,2007,4(3):53-57. |
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| 作者姓名： | 赵艳亮 柳伟 路民旭 |
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| 作者单位： | 北京科技大学,材料科学与工程学院,北京,100083 |
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| 摘 要： | 利用极化曲线,电化学阻抗谱,扫描电镜,能谱分析和微生物分析等方法对X60钢在灭菌培养基和接种硫酸盐还原菌(SRB)培养基中浸泡2h和浸泡240h后的腐蚀行为进行了对比研究.结果表明:浸入初期,相比灭菌介质,含SRB介质中X60钢表面上SRB的初始吸附成膜具有一定的保护作用,这使其耐蚀性能有所提高.浸泡2h后,SRB菌落代谢过程的阴极去极化作用使X60钢表面产生明显点蚀形貌,加速了X60钢的腐蚀,使其耐蚀性能下降.
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| 关 键 词： | 硫酸盐还原菌 X60钢 微生物腐蚀 浸泡时间 点蚀 浸泡时间 化学腐蚀 行为影响 研究 Steel Corrosion Behavior Electrochemical Soaking Time 点蚀形貌 去极化作用 阴极 代谢过程 菌落 耐蚀性能 的保护 成膜 初始吸附 钢表面 介质 浸入 |
| 文章编号： | 1672-9242（2007）03-0053-05 |
| 修稿时间： | 2007-04-19 |
Effect of Soaking Time on SRB Electrochemical Corrosion Behavior of X60 Steel |
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| ZHAO Yan-liang,LIU Wei,LU Min-xu.Effect of Soaking Time on SRB Electrochemical Corrosion Behavior of X60 Steel[J].Equipment Environmental Engineering,2007,4(3):53-57. |
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| Authors: | ZHAO Yan-liang LIU Wei LU Min-xu |
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| Institution: | University of Science and Technology Beijing; Beijing 100083, China |
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| Abstract: | The corrosion behavior of X60 steel in the culture media with and without sulfate-reducing bacteria(SRB) was investigated by polarization curve method,electrochemical impedance spectroscopy(EIS),scanning electron microscopy(SEM),energy dispersive spectroscopy(EDS),and microorganism analysis method.The results showed that SRB biofilm forming on the surface of X60 steel improves its corrosion resistance a little after the initial soaking for 2 h.After soaking time for 240 h in the culture medium with SRB,pitting corrosion appears and develops due to the catholic depolarization function of SRB on the surface of X60 steel. |
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| Keywords: | sulfate-reducing bacteria(SRB) X60 steel microbial corrosion soaking time pitting corrosion |
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