| About this Abstract |
| Meeting |
TMS Specialty Congress 2025
|
| Symposium
|
The 7th International Congress on 3D Materials Science (3DMS 2025)
|
| Presentation Title |
In-Situ Characterization of Martensitic Phase Transformations During Mechanical Cycling Using In-Situ Topotomography and Dark-Field X-Ray Microscopy |
| Author(s) |
Ashley N. Bucsek, Celeste Perez, Janice Moya, Adam Creuziger, Can Yildirim, Carsten Detlefs, Jon Wright, Wolfgang Ludwig |
| On-Site Speaker (Planned) |
Ashley N. Bucsek |
| Abstract Scope |
Reversible martensitic phase transformations enable the functional properties of many “switchable” multiferroic materials. Due to the complex, transient, and 3D nature of martensitic phase transforming microstructures, understanding these behaviors is a significant scientific challenge. In particular, hysteresis and functional fatigue associated with interfacial stress fields at the phase interfaces remain major technological barriers. Our goal is to investigate the cyclic activation and propagation of martensitic microstructures in situ and in 3D using electron backscatter diffraction, diffraction contrast tomography, topotomography, and dark-field x-ray microscopy during mechanical cycling. The results show the 3D emergence and evolution of the 3D microstructures, individual phase interfaces, and interfacial stress fields. The results will lead to a new framework for understanding martensitic phase transforming materials that emerges from a multiscale understanding of stress-activated habit plane variant selection, incorporates the important role of defects, interfacial stress fields, and has broad implications for imperative crosscutting micromechanics challenges. |
| Proceedings Inclusion? |
Undecided |