Stainless Steel Electrochemical Corrosion Behaviors Induced by Sulphate-Reducing Bacteria in Different Aerated Conditions

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	Stainless Steel Electrochemical Corrosion Behaviors Induced by Sulphate-Reducing Bacteria in Different Aerated Conditions
	Zhang, Qian1,2 ; Wang, Peng 1; Zhang, Dun 1
刊名	INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
	2012-11-01
卷号	7 期号:11 页码:11528-11539
关键词	Electrochemical corrosion behavior Stainless steel Sulphate-reducing bacteria EIS
ISSN号	1452-3981
通讯作者	Zhang, Q (reprint author), Chinese Acad Sci, Inst Oceanol, Natl Engn Res Ctr Marine Corros Protect, 7 Nanhai Rd, Qingdao 266071, Peoples R China.
英文摘要	The emphasis of this study lies in the differences of 304 stainless steel electrochemical corrosion behavior induced by the metabolic activity of Sulphate-reducing bacteria (SRB) in a growth cycle under aerobic (oxygen saturated and air saturated culture solutions) and anaerobic (nitrogen saturated culture solutions) conditions. The corrosion process, bio-film formation and the composition of the passive film in different conditions are investigated with electrochemical measurements, scanning electron microscopy and X-ray photoelectron spectroscopy. Both open circuit potential and electrochemical impedance spectra results indicate that the metabolic activity of SRB can accelerate the electrochemical corrosion process of stainless steel in both aerobic and anaerobic conditions, although the bio-film formed can inhibit the erosion of corrosive medium to some extent. The oxygen saturated environment can reduce the corrosion process by inhibiting the metabolic activity of SRB and promoting the passivation of stainless steel, but the air saturated environment presents little effect to the electrochemical property for the low concentration of oxygen. Furthermore, glomerate phenomenon can be observed from the biofilm formed in oxygen saturated culture solutions, indicating that SRB are prone to build localized anaerobic environment for its survival.
学科主题	Electrochemistry
收录类别	SCI
语种	英语
WOS记录号	WOS:000312934600097
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/12479]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
作者单位	1.Chinese Acad Sci, Inst Oceanol, Natl Engn Res Ctr Marine Corros Protect, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Qian,Wang, Peng,Zhang, Dun. Stainless Steel Electrochemical Corrosion Behaviors Induced by Sulphate-Reducing Bacteria in Different Aerated Conditions[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2012,7(11):11528-11539.
APA	Zhang, Qian,Wang, Peng,&Zhang, Dun.(2012).Stainless Steel Electrochemical Corrosion Behaviors Induced by Sulphate-Reducing Bacteria in Different Aerated Conditions.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,7(11),11528-11539.
MLA	Zhang, Qian,et al."Stainless Steel Electrochemical Corrosion Behaviors Induced by Sulphate-Reducing Bacteria in Different Aerated Conditions".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 7.11(2012):11528-11539.