On the impact of cathodic polarization on the chloride threshold of carbon steel in alkaline solutions
Publication date
2024-09-12
Document type
Forschungsartikel
Author
Organisational unit
Publisher
Wiley-VCH
Series or journal
Materials and Corrosion
Periodical volume
76
Periodical issue
2
First page
265
Last page
283
Peer-reviewed
✅
Part of the university bibliography
✅
Language
English
Abstract
This study investigates the influence of cathodic polarization on the chloride threshold (CT) for carbon steel in alkaline solutions, analogous to reinforcing steel embedded in concrete, with a focus on the electrochemical steel potential as a critical factor for corrosion initiation. The research, incorporating a literature review and potentiostatic tests, reveals that CT shows potential independence at potentials more anodic than −200 mVSCE and increases for potentials more cathodic than −200 mVSCE. The observed increase in CT under cathodic polarization is attributed to alterations in the passive layer composition, supporting the existence of distinct potential regions that govern the onset of corrosion.
Version
Published version
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