Feedback | Join Now

HOME | CURRENT | ARCHIVES | ANNOUNCEMENTS | ONLINE SUBMISSION | RESOURCES | ABOUT US
 
Transactions of the INDIAN CERAMIC SOCIETY   Vol. 83  2024
Effect of Corrosion Inhibitor Pyrovanadate Ions on Microstructure and Corrosion Resistance of MgAl Layered Double Hydroxide Films on LA43M Mg-Li Alloy
Jumei Zhang,a, * Jingwen Wu,a Jiacheng Li,a Chaochao Wang,a Bo Wang,b Duoduo Liana and Mengchun Zhanga
Pages: 126-133
DOI : 10.1080/0371750X.2024.2349074
Abstract
In order to explore the effect of corrosion inhibitor modification on the microstructure and corrosion resistance of MgAl layered double hydroxide (LDH) film on LA43M Mg-Li alloy, the MgAl-V2O7 4– LDH films were successfully obtained by ion exchange method at different hydrothermal temperatures. Microstructure of the MgAl LDH films with V2O7 4– anion intercalation were characterized by SEM, EDS and XRD, and the corrosion resistance of the films were tested by EIS, polarization curve and hydrogen evolution experiments. The results showed that the modified MgAl-V2O7 4– LDH nanosheets are larger in size, denser and slightly thicker than that of MgAl LDH film. Electrochemical tests and hydrogen precipitation experiments demonstrated that the corrosion inhibitor modified MgAl-V2O7 4– LDH films can further enhance the corrosion resistance of the film. The MgAl-V2O7 4– LDH prepared at 60oC has the most uniform density and the maximum thickness. It has the lowest Icorr (1.754?10–8 A.cm2) and the most positive Ecorr (–1.147 V). Furthermore, it showed the best corrosion resistance in 3.5 wt% NaCl solution. [Keywords: Mg-Li alloy; V2O7 4– anions; LDH film; Microstructure; Corrosion resistance]
Full text : Subscribe to Download Full Text
[Go Back]
 
MAIN PAGE | SITE MAP | PRIVACY POLICY | TERMS & CONDITIONS  | CONTACT US | FEEDBACK
Copyright © Protected 2008, The Indian Ceramic Society. All right reserved.

Developed By : Hi-Tech Soft & Multimedia