晶界原子尺度运动机制的研究进展

A Review of Atomistic Scale Studies on Solute Segregation and Its Mechanism at Grain Boundary

对近年来研究原子尺度晶界迁移和移动机制的理论和方法进行了系统的评述和总结.归纳了晶界迁移机制的理论模型、晶界迁移机制的原子尺度实验和计算机模拟研究、晶界移动机制的原子尺度计算机模拟研究,讨论了各种晶界运动机制的优点和不足,并展望了材料中晶界运动机制研究的发展趋势.

By emphatically introducing atomistic scale studies on grain boundary migration and motion mechanism in recent years, the theoretical model, experimental and simulation studies of grain boundary migration mechanism at atomistic scale, and simulation studies of grain boundary motion mechanism at atomistic scale were reviewed. The advantages and disadvantages of these grain boundary evolution mecha nisms were discussed. Finally, the future works on grain boundary evolution studies were suggested.