Formation of protective layers on the technically pure magnesium surface in solutions of sodium salts of oleic and mixed alkenylanthanoic acids
https://doi.org/10.61852/2949-3412-2025-3-1-61-72
Abstract
In the present work the possibility of increasing the corrosion resistance of technically pure magnesium by way of sequential treatment in aqueous solutions of 8 mM sodium oleate and 8 mM mixture of sodium salts of alkenyl succinic acids, which are part of the anticorrosion additive KAP-25, has been investigated. The influence of surface preparation before the application of inhibitors and the sequence of their application was evaluated. It is shown that in the case of layer-by-layer treatment the most effective protection can be achieved in the case of oleate application as the first layer, and the increase in the thickness of the oxide-hydroxide sublayer has an ambiguous effect on the efficiency of the studied coatings and to a greater extent increases the protective properties of films of individual compounds.
About the Authors
V. A. Luchkina
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
D. B. Vershok
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
A. A. Chirkunov
A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Russian Federation
Russian Federation
Leninsky pr. 31, 119071 Moscow
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Review
For citations:
Luchkina V.A., Vershok D.B., Chirkunov A.A. Formation of protective layers on the technically pure magnesium surface in solutions of sodium salts of oleic and mixed alkenylanthanoic acids. Title in english. 2025;(1):61-72. (In Russ.) https://doi.org/10.61852/2949-3412-2025-3-1-61-72
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