About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| 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 |
Phase-field modeling of solidification microstructures under additive manufacturing conditions |
| Author(s) |
Alain S. Karma, Kaihua Ji, Mingwang Zhong, Amy Clarke |
| On-Site Speaker (Planned) |
Alain S. Karma |
| Abstract Scope |
This talk will discuss recent advances in phase-field modeling of microstructure development during alloy solidification concomitant with the breakdown of local thermodynamic equilibrium at the solid-liquid interface. For metallic alloys with atomically rough interfaces, breakdown of chemical equilibrium typically occurs at high interface velocity, a regime of renewed interest for additive manufacturing. Recently developed phase-field modeling approaches will be discussed that quantitatively model the departure from local equilibrium at a spatially diffuse interface while, at the same time, enabling simulations on experimentally relevant length and time scales. Selected large-scale simulation results will be presented to illustrate both quantitative comparisons with experimental observations and new insights into microstructural pattern formation during rapid solidification. The talk will also explore the bridge between atomistic and phase-field simulations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Solidification, Modeling and Simulation |