Microbiologically influenced corrosion of Cu by nitrate reducing marine bacterium Pseudomonas aeruginosa

doi:10.1016/j.jmst.2020.02.008

	Microbiologically influenced corrosion of Cu by nitrate reducing marine bacterium Pseudomonas aeruginosa
	Pu, Yanan 1; Dou, Wenwen 1,4; Gu, Tingyue 2; Tang, Shiya 3; Han, Xiaomei 1; Chen, Shougang 1
	2020-06-15
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	47 页码:10-19
通讯作者	Dou, Wenwen(dww@ouc.edu.cn) ; Chen, Shougang(sgchen@ouc.edu.cn)
摘要	The microbiologically influenced corrosion (MIC) mechanisms of copper by Pseudomonas aeruginosa as a typical strain of nitrate reducing bacteria (NRB) was investigated in this lab study. Cu was immersed in deoxygenated LB-NO3 seawater inoculated with P. aeruginosa and incubated for 2 weeks. Results showed that this NRB caused pitting and uniform corrosion. The maximum pit depths after 7 d and 14 d in 125 mL anaerobic vials with 50 mL broth were 5.1 mu m and 9.1 mu m, accompanied by specific weight losses of 1.3 mg/cm(2) (7 d) and 1.7 mg/cm(2) (14 d), respectively. Electrochemical measurements corroborated weight loss and pit depth data trends. Experimental results indicated that extracellular electron transfer for nitrate reduction was the main MIC mechanism and ammonia secreted by P. aeruginosa could also play a role in the overall Cu corrosion process. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
关键词	Cu Pseudomonas aeruginosa Biofilm Nitrate reducing bacteria Microbiologically influenced corrosion Pitting corrosion
DOI	10.1016/j.jmst.2020.02.008
收录类别	SCI
语种	英语
资助项目	China Postdoctoral Science Foundation[2019T120610] ; China Postdoctoral Science Foundation[2018M640655] ; Open Fund of Shandong Key Laboratory of Corrosion Science[KLCS201903] ; National Natural Science Foundation of China[51572249] ; National Natural Science Foundation of China[U1806223]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000526956900002
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：39[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/167293
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Dou, Wenwen; Chen, Shougang
作者单位	1.Ocean Univ China, Dept Mat Sci & Engn, Qingdao 266100, Peoples R China 2.Ohio Univ, Inst Corros & Multiphase Technol, Dept Chem & Biomol Engn, Athens, OH 45701 USA 3.SINOPEC Res Inst Safety Engn, Qingdao 266071, Peoples R China 4.Chinese Acad Sci, Inst Oceanol, Shandong Key Lab Corros Sci, Qingdao 266071, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Pu, Yanan,Dou, Wenwen,Gu, Tingyue,et al. Microbiologically influenced corrosion of Cu by nitrate reducing marine bacterium Pseudomonas aeruginosa[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,47:10-19.
APA	Pu, Yanan,Dou, Wenwen,Gu, Tingyue,Tang, Shiya,Han, Xiaomei,&Chen, Shougang.(2020).Microbiologically influenced corrosion of Cu by nitrate reducing marine bacterium Pseudomonas aeruginosa.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,47,10-19.
MLA	Pu, Yanan,et al."Microbiologically influenced corrosion of Cu by nitrate reducing marine bacterium Pseudomonas aeruginosa".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 47(2020):10-19.

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