Towards a more Realistic Experimental Protocol for the Study of Atmospheric Chloride-Induced Stress Corrosion Cracking in Intermediate Level Radioactive Waste Container Materials

A.B. Cook, B. Gu, S.B. Lyon, R.C. Newman, Dirk L Engelberg

    Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

    Abstract

    The occurrence of Atmospheric chloride-Induced Stress Corrosion Cracking (AISCC) under wetted deposits of MgCl2 or sea-salt at 70°C has been investigated at various Relative Humidities (RH). The appearance of AISCC is a function of the environmental RH. At 33% RH (the deliquescence point of MgCl2), AISCC generated under MgCl2 or sea-salt deposits is of a similar appearance with regards to the number of cracks produced and average crack length. At 50% RH sea-salt seems to be more aggressive at least in terms of crack frequency. This observation may highlight the significance of carnallite (KMgCl3.6H2O) in promoting AISCC in types 304L and 316L stainless steels. The use of accelerated testing methods to validate apparent thresholds in chloride deposition density and other critical factors that influence the initiation and propagation of AISCC is briefly discussed.
    Original languageEnglish
    Title of host publicationMRS Proceedings - Volume 1665: Scientific basis for nuclear waste management XXXVII
    PublisherCambridge University Press
    Volume1665
    DOIs
    Publication statusPublished - 3 Jul 2014
    Event2013 Nuclear Waste Management XXXVII - Barcelona, Spain
    Duration: 30 Sept 20133 Oct 2013

    Publication series

    NameMRS Symposium Proceedings

    Conference

    Conference2013 Nuclear Waste Management XXXVII
    CityBarcelona, Spain
    Period30/09/133/10/13

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