Baseline Examinations and Autoclave Tests of 65 and 100 dpa Flux Thimble Tube O-Ring Specimens

Wade Karlsen (Corresponding Author), Aki Toivonen, Pål Efsing

    Research output: Contribution to journalArticleScientificpeer-review

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    Abstract

    This paper describes the methods and results of analytical TEM examinations and autoclave testing of two highly-irradiated flux thimble tube materials harvested from a commercial pressurized water reactor. The materials are cold-worked 316L, and accumulated 65 dpa and 100 dpa of radiation dose. To set the baseline for a broader study, the materials were examined in the as-irradiated condition and tested as O-ring specimens at relatively high constant loads in simulated PWR water conditions. Tests were also conducted with elevated hydrogen. For a given load, more rapid cracking was associated with higher radiation dose, and with the elevated hydrogen.
    Original languageEnglish
    Pages (from-to)248-273
    JournalCorrosion and Materials Degradation
    Volume2
    Issue number2
    DOIs
    Publication statusPublished - 25 May 2021
    MoE publication typeA1 Journal article-refereed

    Keywords

    • IASCC
    • microstructure
    • autoclave test

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