Thermal annealing effect on D retention for damaged W-10%Re alloy

Yasuhisa Oya, Nao Inozume, Yuzuka Hoshino, Naoaki Yoshida, Tatsuya Hinoki, Kiyohiro Yabuuchi, Yuji Hatano, Qilai Zhou, Fei Sun, Robert Kolasinski, Chase N. Taylor, Masashi Shimada

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The deuterium (D) retention for 1 dpa Fe ion damaged W-10%Re with dynamic-annealing or post-annealing was investigated by TDS. Major D2 desorption was observed at temperatures of 400, 650 and 850 K for 1 dpa damaged W-10%Re without annealing (room temperature). By dynamic-annealing above 573 K, the D2 desorption stage at 850 K was clearly eliminated. On the other hand, it was found that post-annealing at a higher temperature of 1173 K was required to annihilate this desorption stage. This indicates that the D desorption from the irradiation defects introduced at room temperature (post-annealing) needs higher annealing temperature compared to the dynamic-annealing. The D retention for dynamic-annealed sample was reduced by the recovery of D trapping sites by annealing.

Original languageEnglish
Article number113981
JournalFusion Engineering and Design
Volume196
Early online dateSep 14 2023
DOIs
StatePublished - Nov 2023

Keywords

  • Dynamic-annealing
  • Fe ion irradiation
  • Post-annealing
  • TDS
  • Tungsten-10%Rhenium alloy

INL Publication Number

  • INL/JOU-23-73008
  • 157101

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