Institutional Repository of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, IOCAS
| 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 Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 47Pages:10-19 |
| Corresponding Author | Dou, Wenwen(dww@ouc.edu.cn) ; Chen, Shougang(sgchen@ouc.edu.cn) |
| Abstract | 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. |
| Keyword | Cu Pseudomonas aeruginosa Biofilm Nitrate reducing bacteria Microbiologically influenced corrosion Pitting corrosion |
| DOI | 10.1016/j.jmst.2020.02.008 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000526956900002 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://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 Author | Dou, Wenwen; Chen, Shougang |
| Affiliation | 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 |
| Corresponding Author Affilication | Institute 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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