About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Chemistry and Physics of Interfaces
|
| Presentation Title |
The Effect of Grain Boundary Serrations on Mechanical Properties and Deformation Behavior in Polycrystalline Materials |
| Author(s) |
James Burns, Marivel Alfaro, Wenwu Xu |
| On-Site Speaker (Planned) |
James Burns |
| Abstract Scope |
This study investigates the influence of grain boundary (GB) serrations on the mechanical properties and deformation mechanics of polycrystalline metals using finite element analysis (FEA). A MATLAB-based Voronoi modeling technique was employed to create a two-component microstructure where grains are surrounded by GB regions approximately 1nm wide. GB serration parameters such as dimensions, amplitude, frequency, and overall percentage of serrated GB across the microstructures are implemented in this model creation. These geometries are then modeled and analyzed in COMSOL under mechanical loading to evaluate stress distribution and failure behavior. Preliminary results suggest that GB serrations influence how stress is distributed throughout the material. Some patterns reduce stress buildup by redirecting load paths, while others concentrate stress in critical regions, increasing the risk of failure. By varying grain size, serration parameters, and boundary randomness, we examine how microstructural design shapes deformation response and overall material behavior. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Characterization, |