论文标题
重新访问瞬态变形动力学：Lifshitz-Slyozov-Wagner空间中的新框架
Revisiting the transient coarsening kinetics: a new framework in the Lifshitz-Slyozov-Wagner space
论文作者
论文摘要
相结块是多相材料中微观结构演化的基本过程。对其动力学的透彻理解对于材料处理和性能具有重要意义。通常，粗化可以分为瞬态阶段和稳定阶段。与稳定的粗化动力学相比，当前对瞬态变高的理解是相当有限和矛盾的。在目前的工作中，开发了无量纲的Lifshitz-Slyozov-Wagner空间中的一个新框架，以研究通过界面迁移/反应和矩阵扩散共同控制的瞬态变形动力学，其中单个颗粒的动力学方程是从热力学原理中得出的。
Phase coarsening is a fundamental process of microstructure evolution in multiphase materials. A thorough understanding of its kinetics is of great significance for material processing and performance. Generally, coarsening can be divided into the transient stage and the steady stage. Compared with steady coarsening kinetics, the current understanding of transient coarsening is rather limited and contradictory. In the present work, a new framework in the dimensionless Lifshitz-Slyozov-Wagner space is developed to study transient coarsening kinetics co-controlled by interface migration/reaction and matrix diffusion, where the dynamic equation for individual particles is derived from the thermodynamic extremal principle.
