Abstract
A Phase Field model is developed combining the Orientation Field approach to modeling solidification with the Kim, Kim, Suzuki method of modeling binary alloys. These combined methods produce a model capable of simulating randomly oriented second phase dendrites with discrete control of the solid-liquid interface energy and thickness. The example system of carbon in a liquid uranium (U) melt is used as a test for the model. The formation of uranium carbide within a liquid U melt is simulated for isothermal conditions and compares well with experiments.
| Original language | English |
|---|---|
| Article number | 125901 |
| Journal | Journal of Physics Condensed Matter |
| Volume | 31 |
| Issue number | 12 |
| DOIs | |
| State | Published - Jan 29 2019 |
| Externally published | Yes |
Funding
Discussions with Dr James Warren of NIST and Dr Larry Aagesen of INL were extremely helpful in implementing the Orientation Field and KKS approaches respectively into this model. This research was performed at Pacific Northwest National Laboratory (PNNL) using PNNL Institutional Computing. Funding for this work was provided by the Nuclear Process Science Initiative (NPSI), a Laboratory Directed Research and Development Initiative at PNNL which is operated by the Battelle Memorial Institute for the US Department of Energy under Contract No DE-AC05-76RL0-1830.
Keywords
- phase field
- solidification
- uranium carbide