INFLUENCE OF pH VALUES AND CORROSION PRODUCTS ON LOW CARBON STEEL CORROSION SUSCEPTIBILITY IN BORATE BUFFER SOLUTION

doi:10.3724/SP.J.1037.2010.00439

IMR OpenIR

	INFLUENCE OF pH VALUES AND CORROSION PRODUCTS ON LOW CARBON STEEL CORROSION SUSCEPTIBILITY IN BORATE BUFFER SOLUTION
	Yang Jingfeng; Dong Junhua; Ke Wei; Chen Nan
通讯作者	Dong Junhua(jhdong@imr.ac.cn)
	2011-02-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	47 期号:2 页码:152-156
摘要	Low carbon steel has been studied as one candidate material of the outer container used in the geological disposal of the high-level radioactive nuclear waste. The active/passive state of the steel is the most important factor in maintaining the service life of the container. The active state will ensure that the container achieve the designed life under general corrosion, and moreover, the passive state will degrade the container's life under stress corrosion cracking (SCC) caused by pitting corrosion. In the groundwater, a lot of chemical compositions have very complicated effects on the active/passive state of the low carbon steel. Among these factors, obviously, the pH values of the ground water and the corrosion products of the low carbon steel would be the most important factors. In this paper, the influences of pH values and corrosion products on the susceptibility of the low carbon steel in the deaerated borate buffer solutions were studied. The results showed that the corrosion product did not change the corrosion potential of the low carbon steel at a pH value of 8, which means that the steel was in the active state, while the corrosion product made the corrosion potentials of low carbon steel move to the passive state at pH values of 9 and 10. XPS and XRD analyses indicated that the corrosion products were composed of Fe(6)(OH)(12)B(4)O(7) and gamma-FeOOH. The low carbon steel with corrosion products was passivated more easily than the naked steel substrate.
关键词	borate buffer solution low carbon steel corrosion product active/passive potentiostat preparation
资助者	National Natural Science Foundation of China
DOI	10.3724/SP.J.1037.2010.00439
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[51071160]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000288568700004
出版者	SCIENCE CHINA PRESS
引用统计	被引频次：3[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/321006/105251
专题	中国科学院金属研究所
通讯作者	Dong Junhua
作者单位	Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Yang Jingfeng,Dong Junhua,Ke Wei,et al. INFLUENCE OF pH VALUES AND CORROSION PRODUCTS ON LOW CARBON STEEL CORROSION SUSCEPTIBILITY IN BORATE BUFFER SOLUTION[J]. ACTA METALLURGICA SINICA,2011,47(2):152-156.
APA	Yang Jingfeng,Dong Junhua,Ke Wei,&Chen Nan.(2011).INFLUENCE OF pH VALUES AND CORROSION PRODUCTS ON LOW CARBON STEEL CORROSION SUSCEPTIBILITY IN BORATE BUFFER SOLUTION.ACTA METALLURGICA SINICA,47(2),152-156.
MLA	Yang Jingfeng,et al."INFLUENCE OF pH VALUES AND CORROSION PRODUCTS ON LOW CARBON STEEL CORROSION SUSCEPTIBILITY IN BORATE BUFFER SOLUTION".ACTA METALLURGICA SINICA 47.2(2011):152-156.