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Computational Simulation of Irradiation-Induced Structural Defects in Metallic Materials: Formation, Evolution, and
Xiang Hou1, Liang Zhang1,2, Xiaoxu Huang1,2
1International Joint Laboratory for Light Alloys (MOE), College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China.
Nanomaterials (Basel, Switzerland)
|August 12, 2026
Summary
Computational simulations are crucial for understanding irradiation damage in nuclear materials. This review details defect evolution and its impact on material properties, guiding the development of radiation-resistant materials for advanced reactors.
Area of Science:
- Materials Science
- Nuclear Engineering
- Computational Physics
Background:
- Generation IV nuclear reactors require materials with high irradiation resistance.
- Irradiation induces defects, leading to material property degradation and safety risks.
- Understanding defect evolution is key for material service life prediction and safety assessment.
Purpose of the Study:
- To review computational simulation studies on irradiation damage in nuclear structural materials.
- To summarize the "generation-evolution-annihilation" process of irradiation defects.
- To discuss the impact of irradiation on macroscopic mechanical properties.
Main Methods:
- Computational simulation (multiscale and multiphysics coupling).
- Review of studies on irradiation damage mechanisms.
- Analysis of defect dynamics and material property changes.
Main Results:
- Computational simulations have significantly advanced the understanding of irradiation damage.
- Detailed insights into the "generation-evolution-annihilation" of defects under irradiation.
- Correlation established between irradiation-induced defects and macroscopic material property changes.
Conclusions:
- Computational simulation is vital for comprehending irradiation damage at a microscopic level.
- This review provides a foundation for developing next-generation radiation-resistant materials.
- Guidance for material selection and safety assessment in advanced nuclear systems.
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