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Aqueous Molybdate Provides Effective Corrosion Inhibition of WE43 Magnesium Alloy in Sodium Chloride Solutions
Abstract
Corrosion and corrosion inhibition of WE43 magnesium alloy were investigated in NaCl solutions containing different amounts of sodium molybdate. Electrochemical, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. Electrochemical data showed that Na2MoO4 inhibitor provides reliable inhibition at concentrations at and above 100 mM. Raman and XPS spectroscopy demonstrated that the formed surface layer consists of mixed Mo(V, IV) species. This layer provided inhibition with an efficiency of 91–99% after 24 h of exposure. A two-step oxidation-reduction mechanism of corrosion inhibition of the WE43 alloy by aqueous molybdates was proposed
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Authors (9)
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Dmitry Kharitonov Dr.
- Jerzy Haber Institute of Catalysis and Surface Chemistry PAS
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Małgorzata Zimowska
- Jerzy Haber Institute of Catalysis and Surface Chemistry PAS
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Maria Osipenko
- Belarusian State Technological University
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Janusz Adamiec
- Silesian University of Technology
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Angelika Wrzesińska
- Lodz University of Technology
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Per Claesson Prof.
- KTH Royal Institute 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:
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CORROSION SCIENCE
no. 190,
ISSN: 0010-938X - Language:
- English
- Publication year:
- 2021
- Bibliographic description:
- Kharitonov D., Zimowska M., Ryl J., Zieliński A., Osipenko M., Adamiec J., Wrzesińska A., Claesson P., Kurilo I.: Aqueous Molybdate Provides Effective Corrosion Inhibition of WE43 Magnesium Alloy in Sodium Chloride Solutions// CORROSION SCIENCE -Vol. 190, (2021), s.109664-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.corsci.2021.109664
- Verified by:
- Gdańsk University of Technology
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