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A corrosion study on W-Cu alloys in sodium chloride solution at different pH
Guo,Dawei1; Kwok,Chi Tat1,2
2021-02-20
Source PublicationJournal of Materials Science and Technology
ISSN1005-0302
Volume64Pages:38-56
AbstractA corrosion study of two types of tungsten-copper (W-Cu) alloys in 3.38 wt.% NaCl solution with different pH at 25 °C were investigated using potentiodynamic polarization and immersion test. It is crucial that the corrosion behavior and preferential attacked phases of the W-Cu alloys were found to alter with pH. The micro-galvanic effect of tungsten phase and copper binder played a significant role. It was also proved that the existence of aggressive chloride ions could accelerate the Cu binder dissolution in acidic and neutral solution, which induced tungsten phase detachment and increased the corrosion rate of the W-Cu alloys. While Cl would accelerate the Cu binder dissolution of W-Cu alloys at high potential during polarization test in strong alkaline solution.
KeywordChloride ion Galvanic corrosion Immersion test Potentiodynamic polarization Tungsten-copper alloys
DOI10.1016/j.jmst.2020.03.031
URLView the original
Language英语
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorKwok,Chi Tat
Affiliation1.Department of Electromechanical Engineering,University of Macau,Macau,China
2.Institute of Applied Physics and Materials Engineering,University of Macau,Macau,China
First Author AffilicationUniversity of Macau
Corresponding Author AffilicationUniversity of Macau;  INSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Guo,Dawei,Kwok,Chi Tat. A corrosion study on W-Cu alloys in sodium chloride solution at different pH[J]. Journal of Materials Science and Technology,2021,64:38-56.
APA Guo,Dawei,&Kwok,Chi Tat.(2021).A corrosion study on W-Cu alloys in sodium chloride solution at different pH.Journal of Materials Science and Technology,64,38-56.
MLA Guo,Dawei,et al."A corrosion study on W-Cu alloys in sodium chloride solution at different pH".Journal of Materials Science and Technology 64(2021):38-56.
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