Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel

IMR OpenIR

	Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel
	Song, YQ ; Du, CW ; Zhang, X ; Li, XG
通讯作者	Song, YQ(syq-88@163.com)
	2006-03-01
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	42 期号:3 页码:305-310
摘要	Cathodic polarization characteristic of a wedge-shaped crevice of X70 pipeline steel was studied under impressed current cathodic protection in simulated solution of desert soil of Ku'erle in Xinjiang of China. The influences of applied control potentials (-775 mV, -925 mV) and -1075 mV (vs SCE)) and crevice thicknesses (0.15 mm, 0.30 mm and 0.45 mm) on polarization potentials, polarization current and pH value in crevice were investigated. It was shown that the gradients of polarization potential and current in crevice gradually decreased with time. Moreover, with lowering of opening control potential and growing of crevice opening thickness, the polarization potentials in crevice decreased and the polarization current and the pH value in crevice increased. More negative shift of the control potentials and bigger crevice opening thickness can make the growth rate of pH value decrease.
关键词	X70 pipeline steel crevice corrosion cathodic polaxization polarization potential polarization current
收录类别	SCI
语种	英语
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000236556500014
出版者	SCIENCE PRESS
引用统计	被引频次：2[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/321006/86442
专题	中国科学院金属研究所
通讯作者	Song, YQ
作者单位	1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Inner Mongolia Univ Sci & Technol, Sch Mat Sci & Engn, Baotou 014010, Peoples R China 3.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Song, YQ,Du, CW,Zhang, X,et al. Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel[J]. ACTA METALLURGICA SINICA,2006,42(3):305-310.
APA	Song, YQ,Du, CW,Zhang, X,&Li, XG.(2006).Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel.ACTA METALLURGICA SINICA,42(3),305-310.
MLA	Song, YQ,et al."Cathodic polarization characteristic of wedge-shaped crevice of X70 pipeline steel".ACTA METALLURGICA SINICA 42.3(2006):305-310.