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Application of Galvanostatic Non-Linear Impedance Spectroscopy to the Analysis of Metallic Material Degradation
Abstract
This study presents a novel application of Non-Linear Electrochemical Impedance Spectroscopy (NLEIS) in galvanostatic mode for the rapid, non-destructive assessment of metal degradation. By using galvanostatic mode instead of traditional potentiostatic methods, polarization-related challenges are mitigated, enabling more accurate and reliable analysis. The technique allows for the determination of corrosion rates (corrosion current) and material susceptibility to oxidation (Tafel coefficient) through a single measurement with a modulated AC perturbation signal. Theoretical assumptions of the method were validated through tests on both a non-linear model system and an experimental system. The proposed research methodology is highly effective for monitoring the condition of metallic materials in various environments, covering both anodic and cathodic processes.
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Authors (4)
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Husnu Gerengi
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
Materials
no. 17,
ISSN: 1996-1944 - Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Ślepski P., Gerengi H., Parasińska D., Gaweł Ł.: Application of Galvanostatic Non-Linear Impedance Spectroscopy to the Analysis of Metallic Material Degradation// Materials -,iss. 20 (2024), s.4985-
- DOI:
- Digital Object Identifier (open in new tab) 10.3390/ma17204985
- Sources of funding:
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- Free publication
- Verified by:
- Gdańsk University of Technology
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