| About this Abstract |
| Meeting |
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Symposium
|
Liquid Metal Processing & Casting Conference (LMPC 2022)
|
| Presentation Title |
Effect of Transient Heat Flux on the Predictions of Pool Characteristics During Vacuum Arc Remelting of Nitinol |
| Author(s) |
Kyle Fezi, Alex Archambault |
| On-Site Speaker (Planned) |
Kyle Fezi |
| Abstract Scope |
Vacuum arc remelting (VAR) is commonly utilized to produce reactive alloys like Nitinol, which has chemistry sensitive shape memory and super-elastic properties that are desirable for many applications. The thermal characteristics and ensuing molten pool characteristics (e.g. flow field, sump shape, temperature gradients, etc.) of the VAR process directly influence the ingot structure and downstream material performance. Recent experimental measurements of the temperatures within the water-cooled copper mold allowed for inverse heat conduction models to predict the transient heat flux of the VAR process. In this study, a quasi-steady state VAR model developed in OpenFOAM was employed to examine the effect of the sidewall cooling conditions in different regimes of the VAR process on the molten pool and solidification behavior of Nitinol. The sensitivity of the sump depth, strength of the flow field, and local solidification time (LST) to the sidewall cooling conditions were analyzed. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |