About this Abstract |
Meeting |
2021 TMS Annual Meeting & Exhibition
|
Symposium
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Computational Techniques for Multi-Scale Modeling in Advanced Manufacturing
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Presentation Title |
Computational Multi-Scale Modeling of Segregation and Microstructure Evolution during the Solidification of A356 Ingots Processed via a 2-Zone Induction Melting Furnace |
Author(s) |
Aqi Dong, Laurentiu Nastac |
On-Site Speaker (Planned) |
Laurentiu Nastac |
Abstract Scope |
In the current study, a stochastic mesoscopic model was applied to predict the evolution of the A356 microstructure (e.g., dendritic morphologies and columnar-to-equiaxed transition formation) in a 2-Zone induction melting and solidification furnace. The influence of process and material parameters on microstructure, such as initial melting temperature, ultrasonic stirring and cavitation, fluid flow conditions, cooling rate, temperature gradient, and nucleation and growth kinetics parameters for both equiaxed and columnar phases are studied. In addition, the macro-segregation of silicon during solidification of A356 in the crucible is also simulated. The results will be helpful for determining the solidification structure, mushy zone evolution in the crucible and assist in developing of comprehensive solidification maps of various Al-based alloys including those used in additive manufacturing. |
Proceedings Inclusion? |
Planned: |
Keywords |
Solidification, Modeling and Simulation, Additive Manufacturing |