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FORMATION AND CHARACTERISATION OF CHROMATE-FREE CONVERSION LAYERS ON 5556 ALUMINUM ALLOY

1 KOLESNIKOVA Anastasiia
Co-authors:
1 ABRASHOV Aleksey 1 GRIGORYAN Nelya 1 VAGRAMYAN Tigran
Institution:
1 MUCTR - D. Mendeleev University of Chemical Technology of Russia, Moscow, Russia, nastya-koleso@mail.ru
Conference:
30th Anniversary International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 26 - 28, 2021
Proceedings:
Proceedings 30th Anniversary International Conference on Metallurgy and Materials
Pages:
728-734
ISBN:
978-80-87294-99-4
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2021.4173
Published:
15th September 2021
Proceedings of the conference have already been published in Scopus and we are waiting for evaluation and potential indexing in Web of Science.
Metrics:
415 views / 255 downloads
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Abstract

The processes of applying cerium and titanium, zirconium-containing coatings to 5556 aluminum alloy have been developed. It is established that the developed passivation coatings applied on aluminum alloy parts for corrosion resistance and protective ability are comparable with chromate coatings. It was revealed that, unlike chromate coatings, the developed cerium and titanium, zirconium-containing coatings withstand the thermal shock without degrading of characteristics. It was established that the thickness of cerium-containing coatings is about 300 nm, and that of titanium, zirconium-containing coatings is about 100 nm.

Keywords: Corrosion protection, conversion coatings, titanium-containing coatings, zirconium-containing coatings, cerium-containing coatings, surface treatment, chromate-free passivation

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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