| 硫酸盐还原菌模拟生物膜对907A钢腐蚀的影响 |
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| 引用本文： | 段东霞,陈西广,蔺存国.硫酸盐还原菌模拟生物膜对907A钢腐蚀的影响[J].中国腐蚀与防护学报,2011(6). |
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| 作者姓名： | 段东霞 陈西广 蔺存国 |
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| 作者单位： | 中国海洋大学海洋生命学院;中国船舶重工集团公司第七二五研究所青岛分部海洋腐蚀与防护国防科技重点实验室; |
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| 基金项目： | 船舶基金项目(08J1.5.6)资助 |
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| 摘 要： | 根据生物膜的结构特征,以硫酸盐还原菌和琼脂的混合物沉积于907A钢表面,形成人工模拟生物膜,采用微电极研究了模拟生物膜下溶解氧的分布情况,采用环境扫描电镜和能谱表征了模拟生物膜下907A钢在不同环境中的腐蚀情况。研究结果表明在人工模拟生物膜内,距离金属材料表面越近,溶氧量越低;金属材料的腐蚀情况受环境影响,当环境中富含还原性物质且SRB生长旺盛时,907A钢腐蚀严重,腐蚀产物以硫化铁为主,当环境中缺乏还原性物质且SRB生长不良时,907A钢的腐蚀产物以铁氧化物为主。
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| 关 键 词： | 硫酸盐还原菌 生物膜 微生物腐蚀 微电极 |
907A STEEL CORROSION IN ARTIFICIAL SULFATE REDUING BACTERIA BIOFILM |
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| DUAN Dongxia,CHEN Xiguang,LIN Cunguo .College of Marine Science,Ocean University of China,Qingdao ,.State Key Laboratory for Marine Corrosion , Protection,Luoyang Ship Material Research Institute ,Qingdao.907A STEEL CORROSION IN ARTIFICIAL SULFATE REDUING BACTERIA BIOFILM[J].Journal of Chinese Society For Corrosion and Protection,2011(6). |
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| Authors: | DUAN Dongxia CHEN Xiguang LIN Cunguo College of Marine Science Ocean University of China Qingdao State Key Laboratory for Marine Corrosion Protection Luoyang Ship Material Research Institute Qingdao |
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| Affiliation: | DUAN Dongxia~(1,2),CHEN Xiguang~1,LIN Cunguo~2 1.College of Marine Science,Ocean University of China,Qingdao 266003,2.State Key Laboratory for Marine Corrosion and Protection,Luoyang Ship Material Research Institute (LSMRI),Qingdao 266101 |
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| Abstract: | Biofilm is one of the main factors that influence metal corrosion.According to the structure and property of biofilm,the compound of natural biopolymer agar and SRB cells were deposited on 907A surface.Artificial biofilm was produced.The dissolved oxygen concentration in artificial biofilm was studied by microsensors.Environmental scanning electron microscopy(ESEM) and energy dispersive X-ray detector (EDAX) were used to study 907A corrosion under artificial biofilm.The result indicated that the oxygen conc... |
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| Keywords: | sulfate reducing bacteria biofilm microbiologically influenced corrosion microsensor |
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