酸性土壤浸出液中X80钢微生物腐蚀研究:(II)腐蚀形貌和产物分析
Microbiologically Induced Corrosion of X80 Pipeline Steel in an Acid Soil Solution: (II) Corrosion Morphology and Corrosion Product Analysis
查看参考文献28篇
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文摘
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利用X射线光电子能谱分析(XPS)和扫描电子显微镜(SEM)研究了X80管线钢在一种酸性土壤浸出液中硫酸盐还原菌(SRB)腐蚀的产物成分和形貌。结果表明,SRB没有改变样品表面腐蚀产物膜的结构,但其生理过程促进了S从氧化态向还原态的转变,并促进了S在腐蚀产物中的沉积;同时代谢产物磷化物也沉积在腐蚀产物中,改变了腐蚀产物的成分。SRB提高了管线钢局部腐蚀的敏感性,使得腐蚀形式从非均匀腐蚀向局部腐蚀转变。SRB代谢产物和细菌/金属间的直接电子转移可能是促进局部腐蚀萌生的主要原因。 |
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其他语种文摘
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In most cases, microbiologically induced corrosion (MIC) of pipeline was investigated in near neutral culture-media, however, the particular and new environments in which pipeline services were ignored. In this paper, morphology and composition of corrosion productsinduced by sulphate-reducing bacteria (SRB) in an acid soil solution of X80 pipeline steel were examined by X- ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM). The results showed that the activities of SRB have little influence on the structure of the corrosion product on the steel surface, while it facilitates the transformation of sulfur from oxidation states into redox status and thereby, the deposition of sulfide and phosphuret, altering the composition of the corrosion product. In the presence of SRB, the sensitivity to local corrosion of the steel is increased notably, and the metabolite of SRB and the direct electron transfer (DET) from the steel to SRB may be responsible for the increase. |
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来源
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中国腐蚀与防护学报
,2014,34(4):353-358 【核心库】
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DOI
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10.11902/1005.4537.2014.045
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关键词
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硫酸盐还原菌
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管线钢
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酸性土壤浸出液
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腐蚀形貌
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地址
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1.
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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新疆油田油气储运分公司, 克拉玛依, 834002
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中国石油集团西部钻探工程有限公司, 乌鲁木齐, 830011
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-4537 |
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学科
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金属学与金属工艺 |
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基金
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国家自然科学基金
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国家科技基础条件平台建设项目
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文献收藏号
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CSCD:5236296
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吴堂清. 酸性土壤浸出液中X80钢微生物腐蚀研究:(I)电化学分析.
中国腐蚀与防护学报,2014,34:346-352
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