About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Frontiers in Solidification: An MPMD Symposium Honoring Jonathan A. Dantzig
|
Presentation Title |
Phase Field Study Rapid Solidification during Additive Manufacturing of SX Sample |
Author(s) |
Ingo Steinbach, Murali Uddagiri |
On-Site Speaker (Planned) |
Ingo Steinbach |
Abstract Scope |
During an additive manufacturing (AM) process, the component is subjected repeated thermal cycles which results in remelting of existing solidified structures. It is observed that during remelting of SX sample, there is predominant nucleation at the melt pool border for both as built and homogenized sample. In this work, we employ 3-D phase filed simulations to gain deeper understanding of nucleation mechanism during remelting of SX sample. The Multi Phase-Field model is coupled to both mass and heat transport phenomena including release of latent heat of solidification. The simulation studies are conducted for a quaternary model system of NiAlCrTa. A macroscopic CFD model is employed to obtain the heat fluxes at the boundaries (both the heat extraction rate and heat addition rate) which will act as accurate boundary conditions for microscopic PF simulation model. |
Proceedings Inclusion? |
Planned: |
Keywords |
Solidification, Additive Manufacturing, Computational Materials Science & Engineering |