20.500.12556/DiRROS-17287 Monitoring the galvanic corrosion of copper–steel coupling in bentonite slurry during the early oxic phase using coupled multielectrode arrays 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. copper steel bentonite Aspö groundwater coupled multi electrode array electrochemical properties Raman analysis corrosion baker jeklo bentonit Aspö podzemna voda sistem sklopljenih mrež elektrod elektrokemijske lastnosti Raman analiza korozija true false true Wiley VCH Angleški jezik Slovenski jezik © 2023 Wiley‐VCH GmbH. Neznano 2023-11-16 12:17:32 2023-11-16 12:25:43 2023-11-18 03:34:43 0000-00-00 00:00:00 2023 0 0 For peer review; Nasl. z nasl. zaslona; Opis vira z dne 24. 4. 2023; str. 1656-1664 no. 11/12 Vol. 74 Nov./Dec. 2023 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 2023-04-20 2024-04-20 544.5/.6 1521-4176 10.1002/maco.202213689 150165763 https://onlinelibrary.wiley.com/doi/full/10.1002/maco.202213689 1 5c44bd99-8469-11ee-9ccb-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=23475 RAZ_Kosec_Tadeja_2023.pdf RAZ_Kosec_Tadeja_2023.pdf 1 2933A1F8E0513A560F7BEAC6075DD8CD ca1a9753aa512c3b473c5abbb68ee701b7eb153b2ed85f98565449f11fbf6c04 4f5f5731-846a-11ee-9ccb-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=23476 Zavod za gradbeništvo Slovenije 0 0 0