| Title | The Influence of Coherent Oxide Interfaces on the Behaviors of Helium (He) Ion Irradiated ODS W |
| Authors | Liu, Xing Dong, Zhi Shen, Shangkun Wang, Yufei Wu, Zefeng Hao, Liyu Du, Jinlong Zhang, Jian Ma, Zongqing Liu, Yongchang Fu, Engang |
| Affiliation | Peking Univ, Sch Phys, Dept Tech Phys, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China Tianjin Univ, Sch Mat Sci & Engn, State Key Lab Hydraul Engn Simulat & Safety, Tianjin 300072, Peoples R China Xiamen Univ, Coll Energy, Xiamen 361005, Peoples R China |
| Keywords | PLASMA-FACING COMPONENTS HIGH-STRENGTH TUNGSTEN DENSITY ALLOYS |
| Issue Date | Jul-2023 |
| Publisher | MATERIALS |
| Abstract | Tungsten (W), as a promising plasma-facing material for fusion nuclear reactors, exhibits ductility reduction. Introducing high-density coherent nano-dispersoids into the W matrix is a highly efficient strategy to break the tradeoff of the strength-ductility performance. In this work, we performed helium (He) ion irradiation on coherent oxide-dispersoids strengthened (ODS) W to investigate the effect of coherent nanoparticle interfaces on the behavior of He bubbles. The results show that the diameter and density of He bubbles in ODS W are close to that in W at low dose of He ion irradiation. The radiation-induced hardening increment of ODS W, being 25% lower than that of pure W, suggests the involvement of the coherent interface in weakening He ion irradiation-induced hardening and emphasizes the potential of coherent nano-dispersoids in enhancing the radiation resistance of W-based materials. |
| URI | http://hdl.handle.net/20.500.11897/688850 |
| DOI | 10.3390/ma16134613 |
| Indexed | SCI(E) |
| Appears in Collections: | 物理学院 核物理与核技术国家重点实验室 |
