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Peer-reviewedCC BY-NC-NDNature Communications

Realizing irradiation-resistant metallic alloys by immobilizing induced defects

  • Shasha Huang1
  • Zhengxiong Su2
  • Shihua Ma1
  • Baichuan Xu1
  • Haijun Fu1
  • Xuepeng Xiang1
  • Wenyu Lu1
  • Ailin Yang1
  • Zhongtao Li3
  • S. L. Dudarev4
  • Chenyang Lu5
  • Zhenggang Wu6
1 more authors
  • Shijun Zhao7,8,9
9 affiliations
  1. 1Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, China
  2. 2Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, China
  3. 3College of Materials Science and Engineering, State Key Laboratory of Cemented Carbide, Hunan University, Changsha, China
  4. 4UK Atomic Energy Authority, Culham Science Centre, Abingdon, UK
  5. 5Department of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, China. [email protected]
  6. 6College of Materials Science and Engineering, State Key Laboratory of Cemented Carbide, Hunan University, Changsha, China. [email protected]
  7. 7City University of Hong Kong, Shenzhen Research Institute, Shenzhen, China. [email protected]
  8. 8Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China. [email protected]
  9. 9Department of Mechanical Engineering, City University of Hong Kong, Hong Kong, China. [email protected]
Open at sourceDOICite

Abstract

Materials capable of withstanding extreme conditions are essential for advanced fission and fusion technologies. The development of irradiation-tolerant structural materials hinges on the suppression of defect evolution that could lead to mechanical degradation. In this study, we present a novel strategy to effectively immobilize irradiation-induced defects through tuning the degree of local lattice distortion, an intrinsic characteristic of concentrated solid solution alloys. Our results show that increasing the degree of local lattice distortion significantly suppresses irradiation-induced microstructural changes. Notably, the single-phase binary Ni80Mo20 alloy, which exhibits the highest recorded degree of local lattice distortion (4.82% atomic size mismatch), demonstrates markedly frozen defect motion, resulting in negligible irradiation-induced effects. Our findings suggest that irradiation-resistant materials can be developed by engineering local lattice distortion, offering an easy-to-manipulate pathway to designing irradiation-tolerant metallic alloys. This study examines severe lattice distortions in concentrated solid solutions, enabling an energy landscape that immobilizes vacancies and interstitials which curbs their harmful evolution under irradiation conditions.

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Cite

BibTeXRIS
BibTeX
@article{huang2026realizing,
  title = {{Realizing irradiation-resistant metallic alloys by immobilizing induced defects}},
  author = {Shasha Huang and Zhengxiong Su and Shihua Ma and Baichuan Xu and Haijun Fu and Xuepeng Xiang and Wenyu Lu and Ailin Yang and Zhongtao Li and S. L. Dudarev and Chenyang Lu and Zhenggang Wu and Shijun Zhao},
  journal = {Nature Communications},
  year = {2026},
  month = may,
  doi = {10.1038/s41467-026-73093-1},
  url = {https://doi.org/10.1038/s41467-026-73093-1},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Realizing irradiation-resistant metallic alloys by immobilizing induced defects
AU  - Shasha Huang
AU  - Zhengxiong Su
AU  - Shihua Ma
AU  - Baichuan Xu
AU  - Haijun Fu
AU  - Xuepeng Xiang
AU  - Wenyu Lu
AU  - Ailin Yang
AU  - Zhongtao Li
AU  - S. L. Dudarev
AU  - Chenyang Lu
AU  - Zhenggang Wu
AU  - Shijun Zhao
PY  - 2026
DA  - 2026/05/15
JO  - Nature Communications
DO  - 10.1038/s41467-026-73093-1
UR  - https://doi.org/10.1038/s41467-026-73093-1
AB  - Materials capable of withstanding extreme conditions are essential for advanced fission and fusion technologies. The development of irradiation-tolerant structural materials hinges on the suppression of defect evolution that could lead to mechanical degradation. In this study, we present a novel strategy to effectively immobilize irradiation-induced defects through tuning the degree of local lattice distortion, an intrinsic characteristic of concentrated solid solution alloys. Our results show that increasing the degree of local lattice distortion significantly suppresses irradiation-induced microstructural changes. Notably, the single-phase binary Ni80Mo20 alloy, which exhibits the highest recorded degree of local lattice distortion (4.82% atomic size mismatch), demonstrates markedly frozen defect motion, resulting in negligible irradiation-induced effects. Our findings suggest that irradiation-resistant materials can be developed by engineering local lattice distortion, offering an easy-to-manipulate pathway to designing irradiation-tolerant metallic alloys. This study examines severe lattice distortions in concentrated solid solutions, enabling an energy landscape that immobilizes vacancies and interstitials which curbs their harmful evolution under irradiation conditions.
SN  - 2041-1723
ER  -