Study on corrosion behavior of low carbon steel under different water conditions in bentonite of China-Mock-Up

doi:10.1016/j.clay.2018.10.004

IMR OpenIR

	Study on corrosion behavior of low carbon steel under different water conditions in bentonite of China-Mock-Up
	Wei, Xin 1; Liu, Yuemiao 2; Dong, Junhua 1; Cao, Shengfei 2; Xie, Jingli 2; Chen, Nan 1; Xue, Fang 1; Wang, Changgang 1; Ke, Wei 1
通讯作者	Dong, Junhua(jhdong@imr.ac.cn)
	2019
发表期刊	APPLIED CLAY SCIENCE
ISSN	0169-1317
卷号	167 页码:23-32
摘要	In China-Mock-Up, the transition of water conditions in bentonite and its influence on the corrosion behavior of four low carbon steel electrochemical sensors buried in bentonite along horizontal direction were investigated by in situ electrochemical impedance spectroscopy (EIS) with the infiltration of groundwater from outside to inside. The results show that in the initial stage of EIS measurement, water in bentonite around the electrochemical sensors from outside to inside is hygroscopic water and chemical bonding water successively. With increasing time, water in the outer bentonite transforms from hygroscopic water to free water. Meanwhile, water in the inner bentonite transforms from chemical bonding water to hygroscopic water. As water in bentonite exists as the chemical bonding water, the equivalent circuit can be described as a pure capacitor, which does not cause the corrosion of low carbon steel. When water in bentonite exists as hygroscopic water, it can be described as a circuit consisting of two leakage capacitors in series, which causes the slight corrosion of the steel. While, in the presence of free water, the equivalent circuit can be described as a free water resistance and two leakage capacitors in series, which causes the serious corrosion of the steel.
关键词	Waste disposal Corrosion behavior Low carbon steel Bentonite Water condition EIS
资助者	National Natural Science Foundation of China
DOI	10.1016/j.clay.2018.10.004
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51471175] ; National Natural Science Foundation of China[51701222]
WOS研究方向	Chemistry ; Materials Science ; Mineralogy
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Mineralogy
WOS记录号	WOS:000449900400003
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：12[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/321006/130208
专题	中国科学院金属研究所
通讯作者	Dong, Junhua
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Res Inst Uranium Geol, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Wei, Xin,Liu, Yuemiao,Dong, Junhua,et al. Study on corrosion behavior of low carbon steel under different water conditions in bentonite of China-Mock-Up[J]. APPLIED CLAY SCIENCE,2019,167:23-32.
APA	Wei, Xin.,Liu, Yuemiao.,Dong, Junhua.,Cao, Shengfei.,Xie, Jingli.,...&Ke, Wei.(2019).Study on corrosion behavior of low carbon steel under different water conditions in bentonite of China-Mock-Up.APPLIED CLAY SCIENCE,167,23-32.
MLA	Wei, Xin,et al."Study on corrosion behavior of low carbon steel under different water conditions in bentonite of China-Mock-Up".APPLIED CLAY SCIENCE 167(2019):23-32.