| 土壤湿度变化对Q235钢的硫酸盐还原菌腐蚀影响 |
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| 引用本文： | 孙成,韩恩厚.土壤湿度变化对Q235钢的硫酸盐还原菌腐蚀影响[J].中国腐蚀与防护学报,2005,25(5):307-312. |
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| 作者姓名： | 孙成 韩恩厚 |
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| 作者单位： | 中国科学院金属研究所,金属腐蚀与防护国家重点实验室,沈阳110016 |
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| 基金项目： | 国家自然科学基金资助项目（50271077）及国家自然科学基金重大项目资助（50499333）,科技部国家科技基础条件平台项目（2004DKA200410080） |
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| 摘 要： | 利用交流阻抗测试技术、极化曲线、扫描电镜及表面能谱、微生物分析等方法,研究了在土壤水分的自然蒸发过程中,Q235钢在接菌及灭菌土壤中腐蚀行为.40 d的试验结果表明,随着土壤中水分的自然蒸发,土壤中含氧量随土壤湿度降低而增大,土壤中硫酸盐还原菌逐渐减少,接菌及灭菌土壤中Q235钢的腐蚀速率逐渐增大,其中在接菌土壤中的腐蚀速率增幅更大.
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| 关 键 词： | 硫酸盐还原菌 土壤湿度 Q235钢 微生物腐蚀 |
| 文章编号： | 1005-4537（2005）05-0307-06 |
| 收稿时间： | 2005-04-20 |
| 修稿时间： | 2005-04-20 |
EFFECTS OF SRB ON CORROSION OF Q235 STEEL DURING VAPORATION OF WATER IN SOIL |
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| SUN Cheng, HAN Enhou.EFFECTS OF SRB ON CORROSION OF Q235 STEEL DURING VAPORATION OF WATER IN SOIL[J].Journal of Chinese Society For Corrosion and Protection,2005,25(5):307-312. |
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| Authors: | SUN Cheng HAN Enhou |
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| Affiliation: | State Key Laboratory for Corrosion and Protection, Institute of Metal Research, The Chinese Academy of Sciences, Shenyang 110016 |
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| Abstract: | The effects of sulfate reducing bacterial(SRB) on corrosion of Q235 steel during the evaporation of water in soils have been studied by using bacterial analyses,polarization curves,electrochemical impedance spectroscopy(EIS),scanning electron microscopy(SEM) and EDS.The results showed that the number of SRB gradually decreased with the naturally evaporating of water in soil,and the corrosion rate of Q235 steel gradually increases along with the evaporation of water in soils,and the increasing of corrosion rate in soil with SRB was more severe than that in soil without SRB. |
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| Keywords: | sulfate reducing bacterial(SRB) soil water Q235 steel MIC |
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