| 微生物对碳钢海水腐蚀影响的电化学研究 |
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| 引用本文： | 黄桂桥,郭鹏,邢辉斌.微生物对碳钢海水腐蚀影响的电化学研究[J].腐蚀与防护,2011(5). |
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| 作者姓名： | 黄桂桥 郭鹏 邢辉斌 |
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| 作者单位： | 钢铁研究总院青岛海洋腐蚀研究所;中国海洋大学; |
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| 基金项目： | 国家自然科学基金资助重大项目(50499332); 国家科技基础条件平台建设项目(2005DKA10400) |
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| 摘 要： | 通过在现场海水中暴露制备带微生物的试样,用电化学测量技术研究了微生物对碳钢海水腐蚀速度和腐蚀机制的影响。碳钢在海水中的腐蚀速度经历下降-稳定-上升的变化趋势。微生物主要是内锈层中的硫酸盐还原菌(SRB),其可加速碳钢的腐蚀。当内锈层中SRB的加速腐蚀作用大于锈层的缓蚀作用时,碳钢的腐蚀速度出现上升趋势。碳钢在海水中的腐蚀可分为氧扩散控制、过渡和SRB活性控制3个阶段。
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| 关 键 词： | 微生物腐蚀 碳钢 海水 硫酸盐还原菌 |
Electrochemical Study on Microbiologically Influenced Corrosion of Carbon Steel in Seawater |
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| HUANG Gui-qiao,GUO Peng,XING Hui-bin.Electrochemical Study on Microbiologically Influenced Corrosion of Carbon Steel in Seawater[J].Corrosion & Protection,2011(5). |
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| Authors: | HUANG Gui-qiao GUO Peng XING Hui-bin |
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| Affiliation: | HUANG Gui-qiao,GUO Peng,XING Hui-bin~1 (1.Qingdao Research Institute of Marine Corrosion,Qingdao 266071,China,2.Ocean University of China,Qingdao 266003,China) |
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| Abstract: | Samples of carbon steel with microbes were prepared by exposing to seawater on site.The influence of microbes on corrosion rate and corrosion mechanism of carbon steel in seawater was studied by electrochemical measurement techniques.The corrosion rate of carbon steel in seawater showed a trend of falling-steadying-rising. Microbes,especially sulfate-reducing bacteria(SRB)in internal rust layer,could accelerate the corrosion rate.The corrosion rate of the steel showed a rising trend when accelerating effect... |
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| Keywords: | microbiologically influenced corrosion carbon steel seawater sulfate-reducing bacteria |
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