UM  > 科技學院  > 機電工程系
Effect of pH on corrosion behavior of CuCrZr in solution without and with NaCl
C.T. Kwok1; P.K. Wong1; H.C. Man2; F.T. Cheng3
2009-10-01
Source PublicationJournal of Nuclear Materials
ISSN0022-3115
Volume394Issue:1Pages:52-62
Abstract

CuCrZr is a high copper alloy widely used as electrical and thermal conducting material, especially in heat exchangers in nuclear reactors. In this respect, the physical and fatigue properties of CuCrZr have been extensively studied. The electrochemical behavior of CuCrZr, on the other hand, has not been adequately investigated. In the present study, the effect of pH on the corrosion behavior of CuCrZr in aqueous solutions without and with chloride (0.6 M NaCl) was studied. The pH of the solutions is found to exert significant influence on the corrosion behavior of CuCrZr. In acidic solutions without chloride, the corrosion of CuCrZr is ascribed to active dissolution with soluble products. In neutral and alkaline solutions without NaCl, the presence of oxides on the surface of CuCrZr leads to a noble shift in corrosion potential and passivation results in increased corrosion resistance. In chloride solutions at various pH values, the chloride ions influence the formation of the surface layers and the anodic dissolution process during polarization. At high pH, CuCrZr shows significant passivity and high corrosion resistance due to the growth of CuO/Cu(OH) film which hinders further dissolution whereas at low pH the corrosion resistance is lowered due to active dissolution of Cu.

DOIhttps://doi.org/10.1016/j.jnucmat.2009.08.006
URLView the original
Language英语
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Corresponding AuthorF.T. Cheng
Affiliation1.Department of Electromechanical Engineering, University of Macau, China
2.Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hong Kong, China
3.Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
C.T. Kwok,P.K. Wong,H.C. Man,et al. Effect of pH on corrosion behavior of CuCrZr in solution without and with NaCl[J]. Journal of Nuclear Materials,2009,394(1):52-62.
APA C.T. Kwok,P.K. Wong,H.C. Man,&F.T. Cheng.(2009).Effect of pH on corrosion behavior of CuCrZr in solution without and with NaCl.Journal of Nuclear Materials,394(1),52-62.
MLA C.T. Kwok,et al."Effect of pH on corrosion behavior of CuCrZr in solution without and with NaCl".Journal of Nuclear Materials 394.1(2009):52-62.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[C.T. Kwok]'s Articles
[P.K. Wong]'s Articles
[H.C. Man]'s Articles
Baidu academic
Similar articles in Baidu academic
[C.T. Kwok]'s Articles
[P.K. Wong]'s Articles
[H.C. Man]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[C.T. Kwok]'s Articles
[P.K. Wong]'s Articles
[H.C. Man]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.