Corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear waste

The present work is a study of the corrosion susceptibility of steel drums in contact with cemented ion-exchange resins contaminated with different types and concentrations of aggressive species. A special type of specimen was manufactured to simulate the cemented ion-exchange resins in the drum. Th...

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Main Authors: Duffó G., Schulz Rodriguez F., Farina S.
Format: Article
Language:English
Published: EDP Sciences 2013-07-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/20135606004
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author Duffó G.
Schulz Rodriguez F.
Farina S.
author_facet Duffó G.
Schulz Rodriguez F.
Farina S.
author_sort Duffó G.
collection DOAJ
description The present work is a study of the corrosion susceptibility of steel drums in contact with cemented ion-exchange resins contaminated with different types and concentrations of aggressive species. A special type of specimen was manufactured to simulate the cemented ion-exchange resins in the drum. The evolution of the corrosion potential and the corrosion rate of the steel, as well as the electrical resistivity of the matrix were monitored over a time period of 900 days. The aggressive species studied were chloride ions (the main ionic species of concern) and sulphate ions (produced during radiolysis of the cationic exchange-resins after cementation). The work was complemented with an analysis of the corrosion products formed on the steel in each condition, as well as the morphology of the corrosion products. When applying the results obtained in the present work to estimate the corrosion depth of the steel drumscontaining the cemented radioactive waste after a period of 300 years (foreseen durability of the Intermediate Level Radioactive Waste facility in Argentina) , it is found that in the most unfavourable case (high chloride contamination), the corrosion penetration will be considerably lower than the thickness of the wall of the steel drums.
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spelling doaj.art-201544d253734232bf765adb37b32a5b2022-12-21T20:05:43ZengEDP SciencesEPJ Web of Conferences2100-014X2013-07-01560600410.1051/epjconf/20135606004Corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear wasteDuffó G.Schulz Rodriguez F.Farina S.The present work is a study of the corrosion susceptibility of steel drums in contact with cemented ion-exchange resins contaminated with different types and concentrations of aggressive species. A special type of specimen was manufactured to simulate the cemented ion-exchange resins in the drum. The evolution of the corrosion potential and the corrosion rate of the steel, as well as the electrical resistivity of the matrix were monitored over a time period of 900 days. The aggressive species studied were chloride ions (the main ionic species of concern) and sulphate ions (produced during radiolysis of the cationic exchange-resins after cementation). The work was complemented with an analysis of the corrosion products formed on the steel in each condition, as well as the morphology of the corrosion products. When applying the results obtained in the present work to estimate the corrosion depth of the steel drumscontaining the cemented radioactive waste after a period of 300 years (foreseen durability of the Intermediate Level Radioactive Waste facility in Argentina) , it is found that in the most unfavourable case (high chloride contamination), the corrosion penetration will be considerably lower than the thickness of the wall of the steel drums.http://dx.doi.org/10.1051/epjconf/20135606004
spellingShingle Duffó G.
Schulz Rodriguez F.
Farina S.
Corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear waste
EPJ Web of Conferences
title Corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear waste
title_full Corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear waste
title_fullStr Corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear waste
title_full_unstemmed Corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear waste
title_short Corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear waste
title_sort corrosion susceptibility of steel drums to be used as containers for intermediate level nuclear waste
url http://dx.doi.org/10.1051/epjconf/20135606004
work_keys_str_mv AT duffog corrosionsusceptibilityofsteeldrumstobeusedascontainersforintermediatelevelnuclearwaste
AT schulzrodriguezf corrosionsusceptibilityofsteeldrumstobeusedascontainersforintermediatelevelnuclearwaste
AT farinas corrosionsusceptibilityofsteeldrumstobeusedascontainersforintermediatelevelnuclearwaste