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

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

来源：Fusion Engineering and Design, 2023, 196: 113981.

DOI：10.1016/j.fusengdes.2023.113981

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

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.

• 单位
  武汉理工大学; y