atomic diffusion meaning in English

原子扩散

6 . the melting of the grain boundary is the reason of the semi - solid grain globalization , and its control factors were the atomic diffusion velocity and the liquid - solid interface curvature
6 、半固态晶粒球状化的基本原因是晶界熔化，其控制因素是因液界面处原子扩散迁移的速度和界面曲率。
Under the careful retrospection and analysis on the previous and recent experiments about mechanical behavior of nanocrystalline metals performed by almost main investigators , the dislocation and atomic diffusion is believed to contribute hardly to the deformation of nanocrystalline alloy , and a model based on thermal activation process was applied to fit the experimental data of nanocrystalline ag
结果表明，纳米晶金属ag的不仅具有比粗晶ag高2 - 6倍的拉伸和压缩强度，而且在大范性形变阶段显示了极低的加工硬化和应变速率敏感性。结合位错理路和非晶合金形变特征，提出纳米晶金属ag的塑性变形主要由于晶界滑移贡献。