Synergistic effect of alternating current and sulfate-reducing bacteria on corrosion behavior of X80 steel in coastal saline soil

doi:10.1016/j.bioelechem.2021.107911

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	Synergistic effect of alternating current and sulfate-reducing bacteria on corrosion behavior of X80 steel in coastal saline soil
	Qin, Qingyu 1,2; Xu, Jin 1,3; Wei, Boxin 1,2; Fu, Qi 1,2; Gao, Liqun 1; Yu, Changkun 1,3; Sun, Cheng 1,3; Wang, Zhenyao 1,3
刊名	BIOELECTROCHEMISTRY
	2021-12-01
卷号	142 页码:13
关键词	Soil corrosion X80 pipeline steel Alternating current Sulfate-reducing bacteria Extracellular electron transfer
ISSN号	1567-5394
DOI	10.1016/j.bioelechem.2021.107911
通讯作者	Xu, Jin(xujin@imr.ac.cn) ; Sun, Cheng(chengsun@imr.ac.cn)
英文摘要	With 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.
资助项目	National Natural Science Foundation of China[51771213] ; National Natural Science Foundation of China[51871228] ; National Natural Science Foundation of China[51471176]
WOS研究方向	Biochemistry & Molecular Biology ; Life Sciences & Biomedicine - Other Topics ; Biophysics ; Electrochemistry
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000701659100011
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/166782]
专题	金属研究所_中国科学院金属研究所
通讯作者	Xu, Jin; Sun, Cheng
作者单位	1.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
推荐引用方式 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.