| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7951927 | Journal of Materials Science & Technology | 2018 | 5 Pages |
Abstract
The migration of grain boundary (GB), which plays a key role in the microstructural evolution of polycrystalline materials, remains mysterious due to the unknown relationship between GB mobility associated with specific geometry and external conditions (e.g. temperature, stress, etc., hence the thermodynamic driving force). Combining the rate equation of GB migration with molecular dynamics simulations, an intrinsic correlation between driving force and energy barrier for the migration of various types of GBs (i.e. twist, symmetric tilt, asymmetric tilt, and mixed twist-tilt) is herein explored, showing the decrease of energy barrier with increasing thermodynamic driving force.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Chemistry
Authors
Bo Lin, Kang Wang, Feng Liu, Yaohe Zhou,