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Title:Monitoring the galvanic corrosion of copper–steel coupling in bentonite slurry during the early oxic phase using coupled multielectrode arrays
Authors:ID Kosec, Tadeja (Author)
ID Hren, Miha (Author)
ID Prijatelj, Klara (Author)
ID Zajec, Bojan (Author)
ID Gartner, Nina (Author)
ID Legat, Andraž (Author)
Files:URL URL - Source URL, visit
.pdf PDF - Presentation file. (1,66 MB, This file will be accessible after 20.04.2024)
MD5: 2933A1F8E0513A560F7BEAC6075DD8CD
Typology:1.01 - Original Scientific Article
Organization:Logo ZAG - Slovenian National Building and Civil Engineering Institute
Abstract:In the case of a two-part container for spent nuclear fuel, consisting of an iron-based inner structure with a copper coating, the potential perforation of copper through minor damage may result in intensive galvanic corrosion between copper and steel. The present work focuses on the corrosion of steel galvanically coupled to copper and exposed to a slightly saline environment under oxic conditions. The electrochemical processes on individual electrodes were monitored by coupled multielectrode arrays (CMEAs). The CMEAs were either in contact with groundwater saturated with bentonite or immersed in groundwater only. Very high galvanic corrosion currents were detected between carbon steel and pure copper in the early oxic phase. Additionally, the use of CMEAs further made it possible to monitor the distribution of cathodic currents around the steel electrode, which behaved anodically. Various microscopy and spectroscopy techniques were applied to identify the modes of corrosion and the type of corrosion products present at the end of the period of exposure.
Keywords:copper, steel, bentonite, Aspö groundwater, coupled multi electrode array, electrochemical properties, Raman analysis, corrosion
Publication status in journal:Published
Article version:Postprint, final article version, accepted into publication
Publication date:20.04.2023
Publisher:Wiley VCH
Year of publishing:2023
Number of pages:str. 1656-1664
Numbering:Vol. 74, no. 11/12
PID:20.500.12556/DiRROS-17287 New window
ISSN on article:1521-4176
DOI:10.1002/maco.202213689 New window
COBISS.SI-ID:150165763 New window
Copyright:© 2023 Wiley‐VCH GmbH.
Note:For peer review; Nasl. z nasl. zaslona; Opis vira z dne 24. 4. 2023;
Publication date in DiRROS:16.11.2023
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Record is a part of a journal

Title:Materials and corrosion
Shortened title:Mater. corros.
Publisher:Wiley VCH
COBISS.SI-ID:21828101 New window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Project number:P2-0273
Name:Gradbeni objekti in materiali


Description:This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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Keywords:baker, jeklo, bentonit, Aspö podzemna voda, sistem sklopljenih mrež elektrod, elektrokemijske lastnosti, Raman analiza, korozija