IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Effects of metabolic activity of sulphate-reducing bacteria on heterogeneous corrosion behaviors of copper in seawater
Chen, Shiqiang1,2; Zhang, Dun1,2
2018-08-01
Source PublicationMATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
ISSN0947-5117
Volume69Issue:8Pages:985-997
Corresponding AuthorZhang, Dun(zhangdun@qdio.ac.cn)
AbstractIn this paper, wire beam electrode method combined with other analysis methods, that is, electrochemical impedance spectroscopy, scanning electron microscope, and X-ray photoelectron spectroscopy, was used to investigate effects of metabolic activity of sulphate-reducing bacteria (SRB) on heterogeneous corrosion behaviors of copper in seawater. Results show that heterogeneous corrosion behaviors of copper are associated with metabolic activity of SRB, that is, the higher metabolic activity of SRB is, the more heterogeneously current of copper distributes. In particularly, on the 5th day of exposure, SRB cells on cathodic and anodic areas display distinct micromorphologies. SRB attach onto corrosion products film surface in anodic area, while they implant in corrosion products film with self-produced organic nanowires in cathodic area. These organic nanowires may be conductive, and help SRB to obtain electrons from cathodic area directly. The XPS results show that the relative content of corrosion products components on cathodic area is obviously different with that on anodic area when SRB with the high metabolic activity are present.
Keywordcopper EIS microbiologically influenced corrosion SEM XPS
DOI10.1002/maco.201709945
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51771180] ; National Key Research and Development Program of China[2016YFB0300604] ; National Key Research and Development Program of China[2014CB643304] ; Qingdao National Laboratory for Marine Science and Technology
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000440554900003
PublisherWILEY-V C H VERLAG GMBH
Citation statistics
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/159665
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorZhang, Dun
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Open Studio Marine Corros & Protect, 1 Wenhai Rd, Qingdao 266237, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Chen, Shiqiang,Zhang, Dun. Effects of metabolic activity of sulphate-reducing bacteria on heterogeneous corrosion behaviors of copper in seawater[J]. MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,2018,69(8):985-997.
APA Chen, Shiqiang,&Zhang, Dun.(2018).Effects of metabolic activity of sulphate-reducing bacteria on heterogeneous corrosion behaviors of copper in seawater.MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION,69(8),985-997.
MLA Chen, Shiqiang,et al."Effects of metabolic activity of sulphate-reducing bacteria on heterogeneous corrosion behaviors of copper in seawater".MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION 69.8(2018):985-997.
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