| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Solidification and Grain Formation During Additive Manufacturing Process: A Grandpotential Based Phase Field Study |
| Author(s) |
Sudipta Biswas, Larry K Aagesen |
| On-Site Speaker (Planned) |
Sudipta Biswas |
| Abstract Scope |
Solidification play a significant role in dictating the microstructure formation during the additive manufacturing processes. Depending on the process conditions, it determines the formation of the grain structure that govern the properties and performance of the final manufactured components. Hence, understanding the solidification and associated microstructural evolution during additive manufacturing is of immense importance. The current work aims at capturing the morphological alterations a material undergoes during the laser additive manufacturing process. To this end, a grandpotential based phase field model has been implemented using a multiphysics framework. The model captures the effect of solute concentration as well as temperature during solidification of an alloy system. The model has been verified with observations made in existing literatures. The model also demonstrates how the process conditions influence the material morphology during the additive manufacturing process. It effects the formation of columnar, cellular, or equiaxed grains and transition between the said structures. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |