Please use this identifier to cite or link to this item:
http://hdl.handle.net/10773/19975| Title: | Corrosion protection of AA2024-T3 by LDH conversion films. Analysis of SVET results |
| Author: | Tedim, J. Bastos, A. C. Kallip, S. Zheludkevich, M. L. Ferreira, M. G. S. |
| Keywords: | ALUMINUM-ALLOY 2024-T3 INHIBITION AL CHROMATE COATINGS METALS |
| Issue Date: | 2016 |
| Publisher: | PERGAMON-ELSEVIER SCIENCE LTD |
| Abstract: | In this work the protective effect of layered double hydroxide (LDH) films directly grown on the surface of 2024-T3 aluminium alloy is investigated using electrochemical impedance spectroscopy (EIS) and the scanning vibrating electrode technique (SVET). The SVET results focused on the localised nature of the corrosion process and are in agreement with the global response measured by EIS. Furthermore, the evolution of active corrosion protection rendered by LDH films is surveyed at microscale for the first time for long immersion periods in NaCl solution and in the presence of induced defects. The quantitative information provided by SVET is discussed and a parameter to describe the degree of corrosion localisation is introduced based on LDH systems. (C) 2016 Elsevier Ltd. All rights reserved. |
| Peer review: | yes |
| URI: | http://hdl.handle.net/10773/19975 |
| DOI: | 10.1016/j.electacta.2016.05.134 |
| ISSN: | 0013-4686 |
| Publisher Version: | 10.1016/j.electacta.2016.05.134 |
| Appears in Collections: | CICECO - Artigos |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Corrosion protection of AA2024-T3 by LDH conversion films. Analysis of SVET results_10.1016j.electacta.2016.05.134.pdf | 4.27 MB | Adobe PDF |  |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.