The effects of molybdate and dichromate anions on pit propagation of mild steel in bicarbonate solution containing Cl-

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	The effects of molybdate and dichromate anions on pit propagation of mild steel in bicarbonate solution containing Cl-
	Zhao, JM ; Zuo, Y
通讯作者	Zhao, JM()
	2002-09-01
发表期刊	CORROSION SCIENCE
ISSN	0010-938X
卷号	44 期号:9 页码:2119-2130
摘要	The effects of molybdate and dichromate anions on pit propagation of mild steel in bicarbonate solution containing Cl- were investigated by electrochemical measurements. MoO42- ion suppressed both pit nucleation and propagation. Cr2O72- ion Suppressed pit nucleation, but stimulated pit growth. The different effects of the two anions on pit propagation were explained by the opposite effects on pH value within pits. The pH value in molybdate-containing solution increased as a result of polymerization of MoO42-, while in dichrornate4 containing solution, pH value decreased due to hydrolysis of Fe3+, and Cr3+ which are the products of oxido-reducing reactions between Cr2O72- and Fe2+ ions. (C) 2002 Published by Elsevier Science Ltd.
关键词	mild steel molybdate dichromate pitting corrosion pH value
收录类别	SCI
语种	英语
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000176774400015
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：36[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/321006/114864
专题	中国科学院金属研究所
通讯作者	Zhao, JM
作者单位	1.Beijing Inst Chem Technol, Fac Mat Sci & Engn, Beijing 100029, Peoples R China 2.Acad Sinica, State Key Lab Corros & Protect Met, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Zhao, JM,Zuo, Y. The effects of molybdate and dichromate anions on pit propagation of mild steel in bicarbonate solution containing Cl-[J]. CORROSION SCIENCE,2002,44(9):2119-2130.
APA	Zhao, JM,&Zuo, Y.(2002).The effects of molybdate and dichromate anions on pit propagation of mild steel in bicarbonate solution containing Cl-.CORROSION SCIENCE,44(9),2119-2130.
MLA	Zhao, JM,et al."The effects of molybdate and dichromate anions on pit propagation of mild steel in bicarbonate solution containing Cl-".CORROSION SCIENCE 44.9(2002):2119-2130.