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| Radiation Damage of Nuclear Power Materials:A Review of the Multi-Scale High-Throughput Simulations |
| Received:May 25, 2021 Revised:July 20, 2021 |
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| DOI：10.7643/issn.1672-9242.2022.01.001 |
| KeyWord:nuclear power materials radiation defects multi-scale simulation high-throughput calculation materials genome structure energy |
| Author | Institution |
| XUE Fei |
Suzhou Nuclear Power Research Institute, Suzhou , China |
| WANG Yi |
Tsinghua University, Beijing , China;Suzhou Nuclear Power Research Institute, Suzhou , China |
| LIU Xiang-bing |
Suzhou Nuclear Power Research Institute, Suzhou , China |
| LAI Wen-sheng |
Tsinghua University, Beijing , China |
| JI Hua |
Suzhou Nuclear Power Research Institute, Suzhou , China;Tsinghua University, Beijing , China |
| LIU Jian-bo |
Tsinghua University, Beijing , China |
| LIU Bai-xin |
Tsinghua University, Beijing , China |
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| Abstract: |
| The nuclear power materials are subjected to chronic neutron irradiation, during which radiation defects accumulate to degrade the material structure and properties, leading to potential threat of safety of nuclear power plants. The framework of multi-scale high-throughput simulations is a keystone on revealing the mechanisms of radiation defect evolution, which may fulfill the life and performance prediction based on the concept of equivalent defect structures. In this paper, the recent development of multi-scale high-throughput simulations on the defect evolution in nuclear power materials is reviewed. First, the multi-scale nature of the evolution of defect structures is introduced. Then, the state-of-the-art multi-scale simulation techniques are discussed. The review shows that, the energetics of defects plays an important role on linking the simulations of different scales as an integrated chain. The thermodynamic and kinetic properties of defect evolution, essential for the long term prediction of defect structures, are accessible with multi-scale high-throughput simulations. Finally, based on analysis of the correlation of defect energetics, micro-structure and materials properties, we prospect the potential of defect energetics being a “materials genome structure energy” as the basis of engineering models for the service safety evaluation of nuclear power materials. |
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