Effects of single and dual beam Fe and He ion irradiation on NbMoTaW and Ti2ZrHfV0.5Mo0.2 refractory high-entropy alloys

• Published in: Journal of nuclear materials Vol. 615; p. 155936
• Main Authors: Zhang, Peng, Li, Na, Zhang, Xiaonan, Hao, Jinhua, Mei, Xianxiu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.09.2025
• Subjects: Dislocation loops; Dual-beam irradiation; Helium bubbles; Refractory high entropy alloys (RHEAs); Refractory high entropy alloys (RHEAs); Dislocation loops; Dual-beam irradiation; Helium bubbles

•Dual-beam (Fe+He) irradiation effects on RHEAs were studied.•Ti RHEA exhibited larger He bubbles due to its higher vacancy concentration and DPA.•Strong lattice distortion in Ti RHEA suppressed dislocation evolution.•He clusters/He bubbles showed a pinning effect on dislocations.•Ti RHEA exhibited...