About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Fundamental Science of Microstructural Evolution and Phase Transformations: An MPMD/FMD/SMD Symposium in Honor of Peter Voorhees
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| Presentation Title |
Combining 3D Multiscale Experimental Movies and Simulations to Understand the Origin of Metal Plasticity |
| Author(s) |
Henning F. Poulsen, Niels Axel Henningsson, Adam Andre William Cretton, Antonella Gayoso Padula, Johann Haack, Sina Borgi, Grethe Winther |
| On-Site Speaker (Planned) |
Henning F. Poulsen |
| Abstract Scope |
We exploit synchrotron-based X-ray imaging techniques to capture the evolution of microstructure and local stress in FCC metals during tensile deformation — in 3D and deep within millimeter-sized polycrystals. By combining grain mapping (3DXRD) and dislocation structure mapping (DFXM), we produce multiscale experimental movies comprising tens of thousands of crystalline units. We present statistical and geometrical approaches to describe the underlying processes. Next, we discuss how such data can interface with multiscale materials modeling, with reference to prior work in grain growth. Based on this, we address the question of how dislocation cells and geometrically necessary boundaries form and evolve. Finally, we present our efforts toward establishing a multiscale micromechanical model of plastically deformed samples. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Characterization, Modeling and Simulation |