Stray current corrosion in buried pipeline

doi:10.1108/00035591111167695

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋腐蚀与防护研究发展中心

	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
刊名	ANTI-CORROSION METHODS AND MATERIALS
	2011
卷号	58 期号:5 页码:234-237
关键词	Stray Current Corrosion Pipelines Soils
ISSN号	0003-5599
DOI	10.1108/00035591111167695
文献子类	Article
英文摘要	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.
学科主题	Metallurgy & Metallurgical Engineering
URL标识	查看原文
语种	英语
WOS记录号	WOS:000297188600002
公开日期	2012-07-03
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/11476]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
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
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.