| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics and Kinetics of Alloys II
|
| Presentation Title |
A Molar Volume Database for Co-base Superalloys |
| Author(s) |
Ursula R. Kattner, Júlio César Pereira dos Santos, Sean Griesemer |
| On-Site Speaker (Planned) |
Ursula R. Kattner |
| Abstract Scope |
The molar volume of phases is an important quantity for many materials simulations. Despite its importance, few CALPHAD type evaluations of the molar volume in multi-component systems have been published, and no model for describing the temperature and composition dependence has been generally accepted by the community. Different formalisms have been used to describe the temperature dependence of the molar volume of the pure elements, some of which can be used down to 0 K. For the compositional dependence it is generally agreed upon to use the same formalisms as for the description of the Gibbs energy. At the same time, limitations imposed by the software or the goals of modeling using the CALPHAD method may impose restrictions on the model approach being used. The approach taken for the molar volume modeling within the CHiMaD/NIST project on Co-base superalloys will be presented and opportunities for model improvement will be discussed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, |