Deformation microstructures of 30 dpa AISI 304 stainless steel after monotonic tensile and constant load autoclave testing

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    Abstract

    Irradiated AISI 304 stainless steel extracted from the Chooz A center filler assembly has been the subject of a number of studies. Previously the results of slow strain rate tensile and constant load autoclave tests of 30 dpa material have been reported. They showed an influence of temperature, strain rate and environment on the fracture behavior of the material. The irradiated microstructure and deformation microstructures of those materials following testing have now been examined by TEM. The findings suggest that substantial channel deformation was associated with the purely ductile fracture following SSRT testing in argon, while the intergranular fractures following SSRT in simulated PWR environment and constant load testing in both simulated PWR and argon environments were associated with very localized deformation primarily exhibiting alpha martensite. This possibility is discussed in the light of literature.
    Original languageEnglish
    Title of host publication15th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors
    EditorsJeremy T. Busby, Gabriel Ilevbare, Peter L. Andresen
    PublisherWiley
    Pages1352-1366
    ISBN (Electronic)978-1-1184-5683-5
    ISBN (Print)978-1-1181-3241-8
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA4 Article in a conference publication
    Event15th international Conference on Environmental Degradation of Materials in Nuclear power Systems - Water reactors - Colorado Springs, CO, United States
    Duration: 7 Aug 201111 Aug 2011

    Conference

    Conference15th international Conference on Environmental Degradation of Materials in Nuclear power Systems - Water reactors
    CountryUnited States
    CityColorado Springs, CO
    Period7/08/1111/08/11

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    Keywords

    • irradiated
    • stainless steel
    • TEM

    Cite this

    Karlsen, W., Pakarinen, J., Toivonen, A., & Ehrnstén, U. (2011). Deformation microstructures of 30 dpa AISI 304 stainless steel after monotonic tensile and constant load autoclave testing. In J. T. Busby, G. Ilevbare, & P. L. Andresen (Eds.), 15th International Conference on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors (pp. 1352-1366). Wiley. https://doi.org/10.1002/9781118456835.ch149