Effects of metabolic activity of sulphate-reducing bacteria on heterogeneous corrosion behaviors of copper in seawater

doi:10.1002/maco.201709945

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	Effects of metabolic activity of sulphate-reducing bacteria on heterogeneous corrosion behaviors of copper in seawater
	Chen, Shiqiang1,2 ; Zhang, Dun 1,2
刊名	MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION
	2018-08-01
卷号	69 期号:8 页码:985-997
关键词	copper EIS microbiologically influenced corrosion SEM XPS
ISSN号	0947-5117
DOI	10.1002/maco.201709945
通讯作者	Zhang, Dun(zhangdun@qdio.ac.cn)
英文摘要	In 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.
资助项目	National 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研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000440554900003
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/159664]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Zhang, Dun
作者单位	1.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
推荐引用方式 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.