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硫酸盐还原菌生物膜在不锈钢腐蚀过程中的作用 被引量：4

Role of Sulfate Reducing Bacteria Biofilm in Corrosion of Stainless Steel
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摘要 为了进一步了解不锈钢在硫酸盐还原菌(SRB)介质中的腐蚀过程,利用原子力显微镜(AFM)探测了海水介质中18-8SS不锈钢表面SRB生物膜的形貌特征以及生物膜下不锈钢表面状态的变化。结果表明:SRB生物膜呈"鳞片"状,并且生长时间越长,膜层越紧密;不锈钢在SRB介质中很容易发生点蚀,但SRB生物膜能为点蚀以外的完好表面提供一定的保护能力。 An atomic force microscope was performed to analyze the morphological features of the sulfate reducing bacteria(SRB) biofilm on 18-8SS stainless steel and the changes in the surface state of the stainless steel.The corrosion process of the stainless steel in the SRB medium was explored.It was found that the SRB biofilm had scale-like structure,and its compactness rose with extending growth time.Besides,the stainless steel was liable to pitting in the SRB medium,but the SRB biofilm was able to protect the undamaged area of the stainless steel surface to some extent.
作者 李付绍 安茂忠
机构地区 曲靖师范学院化学化工学院 哈尔滨工业大学化工学院
出处 《材料保护》 CAS CSCD 北大核心 2012年第1期27-29,78,共3页 Materials Protection
基金 曲靖师范学院校级重点课题(2009ZD009) 科技创新团队基金(TD200901)资助
关键词 微生物腐蚀 生物膜 18—8SS不锈钢 硫酸盐还原菌 原子力显微镜 microbiological corrosion biofilm 18-8SS stainless steel sulfate reducing bacteria atomic force microscope
分类号 TG174.4 [金属学及工艺—金属表面处理]
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参考文献9

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二级参考文献23

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材料保护
2012年 第1期

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