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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