分类: 核科学技术 >> 辐射物理与技术 提交时间: 2024-06-14
摘要: The evolution of dislocation loops in austenitic steels irradiated with Fe+ is investigated using cluster dynam ics (CD) simulations by developing a CD model. The CD predictions are compared with experimental results in the literature. The number density and average diameter of the dislocation loops obtained from the CD simula tions are in good agreement with the experimental data obtained from transmission electron microscopy (TEM) observations of Fe+-irradiated Solution Annealed 304, Cold Worked 316, and HR3 austenitic steels in the liter ature. The CD simulation results demonstrate that the diffusion of in-cascade interstitial clusters plays a major role in the dislocation loop density and dislocation loop growth; in particular, for the HR3 austenitic steel, the CDmodel has verified the effect of temperature on the density and size of the dislocation loops.