About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Metals: Applications of Solidification Fundamentals
|
Presentation Title |
A-31: Rapid Solidification in Ternary Alloys: A Phase-Field Study |
Author(s) |
Yitao Wang, Fadi Abdeljawad |
On-Site Speaker (Planned) |
Yitao Wang |
Abstract Scope |
Recent advances in metal additive manufacturing techniques have highlighted non-equilibrium effects during the solidification of metallic alloys. Solute trapping can become significant during rapid solidification, which in turn influences the microstructural evolution, and microstructure length scales and, as a result, the properties of such alloys. However, the effect of alloy chemical thermodynamics on solidification properties in multi-component systems remains poorly understood. In the present work, we employ the recently developed finite interface dissipation phase-field modeling framework to examine solidification kinetics in ternary alloys. Analytical and computational studies are used to systematically examine the influence of off-diagonal interdiffusion coefficients and interface “permeability” on solidification rates and solute trapping. Our studies show that the liquid phase off-diagonal transport coefficients play a non-trivial role in solidification growth rates and solute redistribution around the advancing solid-liquid interface. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, Solidification |