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Influence of Calcareous Deposit on Corrosion Behavior of Q235 Carbon Steel with Sulfate-Reducing Bacteria
Zhang Jie1; Li Xiaolong1,2; Wang Jiangwei1; Xu Weichen1; Duan Jizhou1; Chen Shougang3; Hou Baorong1
2017-12-01
Source PublicationJOURNAL OF OCEAN UNIVERSITY OF CHINA
Volume16Issue:6Pages:1213-1219
SubtypeArticle
AbstractCathodic protection is a very effective method to protect metals, which can form calcareous deposits on metal surface. Research on the interrelationship between fouling organism and calcareous deposits is very important but very limited, especially sulfate-reducing bacteria (SRB). SRB is a kind of very important fouling organism that causes microbial corrosion of metals. A study of the influence of calcareous deposit on corrosion behavior of Q235 carbon steel in SRB-containing culture medium was carried out using electrochemical impedance spectroscopy (EIS), scanning electron microscopy (SEM) and surface spectroscopy (EDS). The calcareous deposit was formed with good crystallinity and smooth surface under the gradient current density of -30 mu A cm(-2) in natural seawater for 72 h. Our results can help elucidate the formation of calcareous deposits and reveal the interrelationship between SRB and calcareous deposits under cathodic protection. The results indicate that the corrosion tendency of carbon steel was obviously affected by Sulfate-reducing Bacteria (SRB) metabolic activity and the calcareous deposit formed on the surface of carbon steel under cathodic protection was favourable to reduce the corrosion rate. Calcareous deposits can promote bacterial adhesion before biofilm formation. The results revealed the interaction between biofouling and calcareous deposits, and the anti-corrosion ability was enhanced by a kind of inorganic and organic composite membranes formed by biofilm and calcareous deposits.
KeywordMicrobiological Corrosion Sulfate-reducing Bacteria Calcareous Deposit Cathodic Protection
DOI10.1007/s11802-017-3266-z
Indexed BySCI
Language英语
WOS IDWOS:000414791700033
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.qdio.ac.cn/handle/337002/143044
Collection实验海洋生物学重点实验室
海洋环境腐蚀与与生物污损重点实验室
Affiliation1.Chinese Acad Sci, Key Lab Marine Environm Corros & Biofouling, Inst Oceanol, Qingdao 266071, Peoples R China
2.Univ Chinese Acad Sci, Beijing 10049, Peoples R China
3.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China
First Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhang Jie,Li Xiaolong,Wang Jiangwei,et al. Influence of Calcareous Deposit on Corrosion Behavior of Q235 Carbon Steel with Sulfate-Reducing Bacteria[J]. JOURNAL OF OCEAN UNIVERSITY OF CHINA,2017,16(6):1213-1219.
APA Zhang Jie.,Li Xiaolong.,Wang Jiangwei.,Xu Weichen.,Duan Jizhou.,...&Hou Baorong.(2017).Influence of Calcareous Deposit on Corrosion Behavior of Q235 Carbon Steel with Sulfate-Reducing Bacteria.JOURNAL OF OCEAN UNIVERSITY OF CHINA,16(6),1213-1219.
MLA Zhang Jie,et al."Influence of Calcareous Deposit on Corrosion Behavior of Q235 Carbon Steel with Sulfate-Reducing Bacteria".JOURNAL OF OCEAN UNIVERSITY OF CHINA 16.6(2017):1213-1219.
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