Stray current corrosion in buried pipeline

doi:10.1108/00035591111167695

	Stray current corrosion in buried pipeline
	Zhu, Qingjun 1; Cao, Alin 2; Wang Zaifend 3; Song, Liwen 3; Chen Shengli 3; Zhu, QJ (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
	2011
发表期刊	ANTI-CORROSION METHODS AND MATERIALS
ISSN	0003-5599
卷号	58 期号:5 页码:234-237
文章类型	Article
摘要	Purpose - The purpose of this paper is to analyze and solve abnormal variation of pipe-to-soil potentials of an oil-transfer pipeline.; Purpose - The purpose of this paper is to analyze and solve abnormal variation of pipe-to-soil potentials of an oil-transfer pipeline. Design/methodology/approach - Pipe-to-soil potentials of an oil-transfer pipeline varied abnormally at several locations. Visual detections find the pipeline is buried near an electric railway and there are several anodic ground beds nearby. Corrosion patterns of the pipeline and examination of the soil reveal no microbiological corrosion. The potential gradients indicate the pipeline might not be attacked by stray currents. However, whole day measurements of one pipeline pile show there are two kinds of stray currents influencing the pipeline: AC stray current and DC stray current. Findings - The highest pipe-to-soil potential reaches 12.958 V when there are AC stray currents. In addition, the biggest and lowest DC pipe-to-soil potentials are 0.888 V and -5.90 V, respectively. Radiodetection pipeline current mapper measurement finds there is some bitumen coating breaking points on pipeline. These make the stray currents enter the pipeline and stray current corrosion happens easily. As a result, stray current corrosion happens. Originality/value - The potential gradients cannot indicate stray current corrosion under all circumstance.
关键词	Stray Current Corrosion Pipelines Soils
学科领域	Metallurgy & Metallurgical Engineering
DOI	10.1108/00035591111167695
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000297188600002
引用统计	被引频次：34[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/11475
专题	海洋环境腐蚀与生物污损重点实验室
通讯作者	Zhu, QJ (reprint author), Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China 2.Chongqing Univ, Coll Chem & Chem Engn, Chongqing 630044, Peoples R China 3.China Natl Offshore Oil Corp, Beijing, Peoples R China
第一作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Zhu, Qingjun,Cao, Alin,Wang Zaifend,et al. Stray current corrosion in buried pipeline[J]. ANTI-CORROSION METHODS AND MATERIALS,2011,58(5):234-237.
APA	Zhu, Qingjun,Cao, Alin,Wang Zaifend,Song, Liwen,Chen Shengli,&Zhu, QJ .(2011).Stray current corrosion in buried pipeline.ANTI-CORROSION METHODS AND MATERIALS,58(5),234-237.
MLA	Zhu, Qingjun,et al."Stray current corrosion in buried pipeline".ANTI-CORROSION METHODS AND MATERIALS 58.5(2011):234-237.

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