Application of Galvanostatic Non-Linear Impedance Spectroscopy to the Analysis of Metallic Material Degradation - Publication - Bridge of Knowledge

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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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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:
  • Free publication
Verified by:
Gdańsk University of Technology

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