Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil

doi:10.1016/j.engfailanal.2020.105065

IMR OpenIR

	Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil
	Qin, Qingyu 1,2; Wei, Boxin 1,2; Bai, Yunlong 1,3; Fu, Qi 1,2; Xu, Jin 1,3; Sun, Cheng 1,3; Wang, Chuan 1,3; Wang, Zhenyao 1,3
通讯作者	Xu, Jin(xujin@imr.ac.cn) ; Sun, Cheng(chengsun@imr.ac.cn)
	2021-02-01
发表期刊	ENGINEERING FAILURE ANALYSIS
ISSN	1350-6307
卷号	120 页码:16
摘要	Effects of alternating currents (AC) with different frequencies on corrosion behavior of X80 pipeline steel have been investigated in coastal saline soil using polarization curves, electrochemical impedance spectroscopy, weight-loss test and surface analysis techniques. Results show that the corrosion rate of the steel specimen decreases with the AC frequency increasing, when the AC frequency is 20 Hz, the corrosion rate is about 5.9 times higher than that without the AC interference, and the corrosion rate is only 1.5 times higher than that without the AC interference when the AC frequency increasing to 400 Hz. There is a power function relationship, y = 1.66x(-0.5), between the corrosion rate and the AC frequency. At low AC frequencies, the corrosion product films formed on the specimen surfaces contain more defects (holes and tunnels) than those at high frequencies, resulting in severe pitting corrosion.
关键词	X80 pipeline steel Soil corrosion AC frequency Pitting corrosion
资助者	National Natural Science Foundation of China
DOI	10.1016/j.engfailanal.2020.105065
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	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Characterization & Testing
WOS记录号	WOS:000604261700001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：28[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/321006/158925
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,Wei, Boxin,Bai, Yunlong,et al. Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil[J]. ENGINEERING FAILURE ANALYSIS,2021,120:16.
APA	Qin, Qingyu.,Wei, Boxin.,Bai, Yunlong.,Fu, Qi.,Xu, Jin.,...&Wang, Zhenyao.(2021).Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil.ENGINEERING FAILURE ANALYSIS,120,16.
MLA	Qin, Qingyu,et al."Effect of alternating current frequency on corrosion behavior of X80 pipeline steel in coastal saline soil".ENGINEERING FAILURE ANALYSIS 120(2021):16.