STUDY OF THE CHEMICAL FORMATION OF CERIUM OXIDE CONVERSION LAYERS ON ALUMINIUM AD-3
Reni A. Andreeva, Emilia A. Stoyanova, Dimitar S. Stoychev
Pages: 751-759
Published: 28 Jun 2014
Views: 2,943
Downloads: 1,456
Abstract: The effect of the concentration of cerium ions as а component of electrolytes, designed for conversion treatment, has been studied in view of the morphology and structure of the conversion films, formed on Al. The studies have been carried out in a complex electrolyte containing cerium and copper ions at temperature 25 °С and duration of the treatment 60 and 120 min. It has been found out that the presence of copper ions in the electrolyte leads to the formation of more compact and richer in cerium conversion films. The electrochemical characteristics (corrosion current, corrosion potential) of the formed films have been investigated applying potentiodynamic polarization method in 0.1 M NaCl solutions. The composition of the electrolytes has been optimized with respect to the concentrations of cerium and copper ions, aiming at obtaining conversion films having improved protection ability. Thereupon the influence of the microgalvanic couples copper/aluminium has been established.
Keywords: cerium conversion films, aluminium, corrosion protection
Cite this article: Reni A. Andreeva, Emilia A. Stoyanova, Dimitar S. Stoychev. STUDY OF THE CHEMICAL FORMATION OF CERIUM OXIDE CONVERSION LAYERS ON ALUMINIUM AD-3. Journal of International Scientific Publications: Materials, Methods & Technologies 8, 751-759 (2014). https://www.scientific-publications.net/en/article/1000228/
Back to the contents of the volume
© 2025 The Author(s). This is an open access article distributed under the terms of the
Creative Commons Attribution License https://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. This permission does not cover any third party copyrighted material which may appear in the work requested.
Disclaimer: The Publisher and/or the editor(s) are not responsible for the statements, opinions, and data contained in any published works. These are solely the views of the individual author(s) and contributor(s). The Publisher and/or the editor(s) disclaim any liability for injury to individuals or property arising from the ideas, methods, instructions, or products mentioned in the content.
