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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
Corresponding AuthorZhao, JM()
2002-09-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume44Issue:9Pages:2119-2130
AbstractThe 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.
Keywordmild steel molybdate dichromate pitting corrosion pH value
Indexed BySCI
Language英语
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000176774400015
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:29[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/114864
Collection中国科学院金属研究所
Corresponding AuthorZhao, JM
Affiliation1.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
Recommended Citation
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.
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