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Synergistic effect of alternating current and sulfate-reducing bacteria on corrosion behavior of X80 steel in coastal saline soil
Qin, Qingyu1,2; Xu, Jin1,3; Wei, Boxin1,2; Fu, Qi1,2; Gao, Liqun1; Yu, Changkun1,3; Sun, Cheng1,3; Wang, Zhenyao1,3
Corresponding AuthorXu, Jin(xujin@imr.ac.cn) ; Sun, Cheng(chengsun@imr.ac.cn)
2021-12-01
Source PublicationBIOELECTROCHEMISTRY
ISSN1567-5394
Volume142Pages:13
AbstractWith the development of electrified railways and high-voltage transmission lines, it is often inevitable that buried metal structures are subjected to interference from the alternating current (AC) induced by the neighboring power facilities. Commonly found in soil, sulfate-reducing bacteria (SRB) have the capability to accelerate metal corrosion. In this paper, with electrochemical methods, surface analysis techniques, and weight-loss test, the influence of AC and SRB on the X80 steel corrosion behavior was explored in coastal saline soil. The results revealed that the 100 A m(-2) AC inhibited the growth of the sessile and planktonic SRB cell. Under the action of 100 A m(-2) AC, the metabolic activity of viable bacteria was enhanced, and the process of extracellular electron transfer was accelerated. When both AC and SRB were introduced, the maximum pit depth (76.2 mu m) increased significantly to be 15 times higher than in the control condition (4.9 mu m). Both SRB and AC played a role in enhancing corrosion. The corrosion rate of the AC-influenced specimen was far higher than that of the SRB-influenced specimen, while SRB and AC produced a synergistic effect on the enhanced corrosion of the specimen. (C) 2021 Elsevier B.V. All rights reserved.
KeywordSoil corrosion X80 pipeline steel Alternating current Sulfate-reducing bacteria Extracellular electron transfer
Funding OrganizationNational Natural Science Foundation of China
DOI10.1016/j.bioelechem.2021.107911
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51771213] ; National Natural Science Foundation of China[51871228] ; National Natural Science Foundation of China[51471176]
WOS Research AreaBiochemistry & Molecular Biology ; Life Sciences & Biomedicine - Other Topics ; Biophysics ; Electrochemistry
WOS SubjectBiochemistry & Molecular Biology ; Biology ; Biophysics ; Electrochemistry
WOS IDWOS:000701659100011
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/166783
Collection中国科学院金属研究所
Corresponding AuthorXu, Jin; Sun, Cheng
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Liaoning Shenyang Soil & Atmosphere Corros Mat Na, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Qin, Qingyu,Xu, Jin,Wei, Boxin,et al. Synergistic effect of alternating current and sulfate-reducing bacteria on corrosion behavior of X80 steel in coastal saline soil[J]. BIOELECTROCHEMISTRY,2021,142:13.
APA Qin, Qingyu.,Xu, Jin.,Wei, Boxin.,Fu, Qi.,Gao, Liqun.,...&Wang, Zhenyao.(2021).Synergistic effect of alternating current and sulfate-reducing bacteria on corrosion behavior of X80 steel in coastal saline soil.BIOELECTROCHEMISTRY,142,13.
MLA Qin, Qingyu,et al."Synergistic effect of alternating current and sulfate-reducing bacteria on corrosion behavior of X80 steel in coastal saline soil".BIOELECTROCHEMISTRY 142(2021):13.
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