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

IMR OpenIR

	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
通讯作者	Xu, Jin(xujin@imr.ac.cn) ; Sun, Cheng(chengsun@imr.ac.cn)
	2021-12-01
发表期刊	BIOELECTROCHEMISTRY
ISSN	1567-5394
卷号	142 页码:13
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.
关键词	Soil corrosion X80 pipeline steel Alternating current Sulfate-reducing bacteria Extracellular electron transfer
资助者	National Natural Science Foundation of China
DOI	10.1016/j.bioelechem.2021.107911
收录类别	SCI
语种	英语
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
WOS类目	Biochemistry & Molecular Biology ; Biology ; Biophysics ; Electrochemistry
WOS记录号	WOS:000701659100011
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/166783
专题	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.