About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Frontiers in Solidification X
|
| Presentation Title |
Benchmark Validation of Multicomponent Nickel Superalloy Solidification |
| Author(s) |
Miles Johnson, Caleb Schrad, Levi Dickson, Jack Heeney, Red Deaton, Luke N. Brewer, Matthew J. M. Krane |
| On-Site Speaker (Planned) |
Miles Johnson |
| Abstract Scope |
Solidification modeling of nickel-based superalloys processing is crucial for ensuring favorable processing conditions and estimating the likelihood of defects and macrosegregation. Benchmark solidification data for multicomponent alloys is necessary for numerical model development; however, data containing multicomponent alloys are limited in the literature. A University of Alabama benchtop investment casting experiment using IN718 is designed to validate a multicomponent solidification model developed at Purdue University within the open-source OpenFOAM framework. Experimental castings were at liquidus temperature during the pour and chilled by a single, air-cooled heat exchanger on one surface. Various boundary conditions are applied by adjusting the air flow of the chilled surface, applying interfacial resistance to the chilled surface, and accounting for radiation transfer between the investment mold and the surrounding furnace. Resultant thermal histories, microstructural analysis, and solute redistribution are compared to the continuum mixture model simulation and discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Solidification, Modeling and Simulation, Computational Materials Science & Engineering |