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Abstract
In this work, corrosion inhibition of the AZ31 magnesium alloy was investigated in NaCl solutions containing different amounts of sodium molybdate inhibitor. Electrochemical, hydrogen evolution, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. The results showed that Na2MoO4 inhibitor provides reliable inhibition at high concentrations (150 mM). Surface examination by Raman and XPS spectroscopy confirmed the formation of a protective surface layer of mixed Mo(VI, V, IV) species. Based on these results, the mechanism of corrosion inhibition of the AZ31 alloy by aqueous molybdates was proposed.
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Authors (6)
-
Maria Osipenko
- Belarusian State Technological University
-
Dmitry Kharitonov Dr.
- Institute of Catalysis and Surface Chemistry PAS
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Aliaksandr Kasach
- Belarusian State Technological University
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Janusz Adamiec
- Silesian University of Technology
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Irina Kurilo Prof.
- Belarusian State Technological University
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
ELECTROCHIMICA ACTA
no. 414,
ISSN: 0013-4686 - Language:
- English
- Publication year:
- 2022
- Bibliographic description:
- Osipenko M., Kharitonov D., Kasach A., Ryl J., Adamiec J., Kurilo I.: Inhibitive effect of sodium molybdate on corrosion of AZ31 magnesium alloy in chloride solutions// ELECTROCHIMICA ACTA -Vol. 414, (2022), s.140175-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.electacta.2022.140175
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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