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The influence of sulphate-reducing bacteria on heterogeneous electrochemical corrosion behavior of Q235 carbon steel in seawater
Chen, S. -Q.; Wang, P.; Zhang, D.
2016-04-01
Source PublicationMATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
Volume67Issue:4Pages:340-351
SubtypeArticle
AbstractIn this article, wire beam electrode (WBE) technique, electrochemical impedance spectroscopy (EIS), scanning electron microscope (SEM), and X-ray photoelectron spectroscopy (XPS) were used to investigate heterogeneous electrochemical corrosion behavior of Q235 carbon steel in seawater containing sulphate-reducing bacteria (SRB). The presence of SRB in seawater results in the change of corrosion form of Q235 carbon steel from uniform corrosion to localized corrosion. Meanwhile, current distribution of Q235 carbon steel surface changes from homogeneity to heterogeneity in SRB medium, which is opposite to the trend in sterile medium. The localized corrosion process of Q235 carbon steel in SRB medium is indicated by increasing anodic area, and it centralizes in some local areas along with increasing of immersion time. In SRB medium, cathodic and anodic areas present different morphological characteristics. The corrosion products film on cathodic area is compact, whereas that in anodic area is loose. The corrosion products of Q235 carbon steel in SRB medium are mainly composed of FeS, FeO, and FeSO4 and it is hard to find the difference in composition between cathodic and anodic areas.
KeywordElectrochemical Impedance Spectroscopy Heterogeneous Electrochemical Corrosion Microbiologically Influenced Corrosion Sulphate-reducing Bacteria Wire Beam Electrode
DOI10.1002/maco.201508555
Indexed BySCI
Language英语
WOS IDWOS:000373610200002
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/126256
Collection海洋环境腐蚀与与生物污损重点实验室
AffiliationChinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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Chen, S. -Q.,Wang, P.,Zhang, D.. The influence of sulphate-reducing bacteria on heterogeneous electrochemical corrosion behavior of Q235 carbon steel in seawater[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2016,67(4):340-351.
APA Chen, S. -Q.,Wang, P.,&Zhang, D..(2016).The influence of sulphate-reducing bacteria on heterogeneous electrochemical corrosion behavior of Q235 carbon steel in seawater.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,67(4),340-351.
MLA Chen, S. -Q.,et al."The influence of sulphate-reducing bacteria on heterogeneous electrochemical corrosion behavior of Q235 carbon steel in seawater".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 67.4(2016):340-351.
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