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以Fe-Cu合金为研究对象,利用分子动力学仿真软件建立了辐照所导致的缺陷结构模型,研究了缺陷特征能、辐照温度对空位团簇以及间隙原子团簇份额的影响等。结果表明:Fe-Cu合金在辐照条件下由于级联碰撞产生缺陷,Cu对产生缺陷的复合、湮灭以及数量影响很小,但能够降低空位迁移能,辐照温度对空位团簇份额和间隙原子团簇份额有显著影响。随着辐照温度的升高,两个团簇份额均出现先升高后下降的变化趋势。
Taking Fe-Cu alloy as the research object, the defect structure model caused by irradiation was established by molecular dynamics simulation software, and the influence of defect characteristic energy, irradiation temperature on vacancy cluster and interstitial atomic cluster fraction was studied. The results show that Fe-Cu alloy produces defects due to cascade collision under irradiation conditions, Cu has little effect on the recombination, annihilation and quantity of defects, but it can reduce the effects of vacancy migration energy and irradiation temperature on vacancy cluster fraction and gap The atomic cluster fraction has a significant effect. With the increase of irradiation temperature, the proportion of the two clusters first increased and then decreased.