| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Multi-Principal Element Alloys IV: Mechanical Behavior
|
| Presentation Title |
Multiple Origins of Extra Electron Diffractions in FCC Multiple Principal Element Alloys |
| Author(s) |
Mingwei Zhang, Flynn Walsh, Robert O. Ritchie, Mark Asta, Andrew M. Minor |
| On-Site Speaker (Planned) |
Mingwei Zhang |
| Abstract Scope |
The diffuse intensities observed in electron diffraction patterns of concentrated face-centered cubic solid solutions have conventionally been linked to chemical short-range order. However, recent scrutiny has cast doubt on this connection. This talk explores alternative origins of these commonly observed features combining experimental electron microscopy and multislice diffraction simulations. The findings indicate that much of the diffuse intensities can be attributed to scattering caused by thermal and static displacements. Furthermore, the research suggests that certain observations may also stem from planar defects, surface terminations that do not align with bulk periodicity, or weaker dynamical effects. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
High-Entropy Alloys, Characterization, Modeling and Simulation |