IOCAS-IR  > 海洋环境腐蚀与与生物污损重点实验室
Microbiologically influenced corrosion of Cu by nitrate reducing marine bacterium Pseudomonas aeruginosa
Pu, Yanan1; Dou, Wenwen1,4; Gu, Tingyue2; Tang, Shiya3; Han, Xiaomei1; Chen, Shougang1
2020-06-15
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume47Pages:10-19
Corresponding AuthorDou, Wenwen(dww@ouc.edu.cn) ; Chen, Shougang(sgchen@ouc.edu.cn)
AbstractThe 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.
KeywordCu Pseudomonas aeruginosa Biofilm Nitrate reducing bacteria Microbiologically influenced corrosion Pitting corrosion
DOI10.1016/j.jmst.2020.02.008
Indexed BySCI
Language英语
Funding ProjectChina 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 Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000526956900002
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/167293
Collection海洋环境腐蚀与与生物污损重点实验室
Corresponding AuthorDou, Wenwen; Chen, Shougang
Affiliation1.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
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
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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