| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics and Phase Diagrams Applied to Materials Design and Processing: An FMD/SMD Symposium Honoring Rainer Schmid-Fetzer
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| Presentation Title |
Prediction of as cast microstructure by solidification model coupled with CALPHAD database: Conventional casting and Additive manufacturing process |
| Author(s) |
In-Ho Jung, Nishant Kumar, Minho Yun |
| On-Site Speaker (Planned) |
In-Ho Jung |
| Abstract Scope |
Most metallic materials are produced through melting, casting and heat treatment process. The microstructure of materials varies through this process route, and as cast microstructure can significantly influence the final mechanical and physico-chemical properties of materials. Therefore, the prediction of as cast microstructure depending on the solidification parameters is important in materials processing. We have developed 1D solidification model for Al and Mg alloys to predict the key features of as cast microstructure such as primary and secondary dendrite spacing, micro-segregation and second phase fraction. In particular, the CALPHAD thermodynamic database is connected to the solidification model for easy extension to multicomponent alloy system using accurate phase diagram information and thermodynamic data. In this study, we will present the most recent development of the solidification model and their successful applications to conventional solidification of Al alloys and additive manufacturing of Al-Si alloys. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Solidification, Computational Materials Science & Engineering, Additive Manufacturing |