| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2025
|
| Presentation Title |
Understanding the Role of Interfaces and Elemental Segregation on Texture Weakening in Mg-Zn-Ca Alloys During Recrystallization |
| Author(s) |
Rogine Gomez, Aeriel Leonard |
| On-Site Speaker (Planned) |
Rogine Gomez |
| Abstract Scope |
Mg alloys containing Ca and Zn exhibit deformation twin suppression, and dislocation slip becomes the primary mode to accommodate c-axis deformation. In this study, in situ heating combined with SEM and EBSD were used to characterize the microstructural and crystallographic texture evolution during recrystallization and grain growth of Mg-Zn, Mg-Ca, and Mg-Zn-Ca. STEM and EDS were used to understand the dislocation structure and elemental segregation near and within interfaces associated with deformation twins and grains (i.e., boundaries and triple junctions) which play a significant role in recrystallization mechanisms and texture development. For Mg-Zn, deformation twins are prominent and are preferred nucleation sites for recrystallized grains with similar orientations as the parent grain, which results in a strong texture after recrystallization. Contrarily, Mg-Ca and Mg-Ca-Zn exhibit a limited number of twins, which results in grain boundaries and triple junctions being the preferred nucleation sites for recrystallized grains with more randomized orientations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Characterization, Phase Transformations |