| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Phase-Field Modeling of Nanotwins Evolution and Grain Boundary Interactions in Cu During Annealing |
| Author(s) |
Yixi Shen, Irene Beyerlein |
| On-Site Speaker (Planned) |
Yixi Shen |
| Abstract Scope |
Nanotwins are microstructures commonly observed in sputtered single-element and alloyed metals with low stacking fault energy. They can improve several material properties and influence microstructure evolution during thermal annealing. To understand the impact of nanotwins on the microstructure evolution pathway, we developed an anisotropic multi-phase field (PF) model, which is parameterized to study the evolution of nanotwins (detwinning) and their interaction with grain boundaries (detaching from grain boundaries) in homogeneous Cu under various annealing temperatures. As the first phase-field model to address nanotwins behaviors under annealing condition, parameterization methods and model verification against other experimental observations are presented and discussed. Furthermore, the influence of various annealing temperature on the detwinning of nanotwins with different thicknesses is explored. Additionally, the effects of temperature, nanotwin thickness, twin boundary energies, and grain boundary energy on the interactions between nanotwins and grain boundaries are also discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Modeling and Simulation, Phase Transformations, |