| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Hume-Rothery Symposium: Thermodynamics, Phase Equilibria and Kinetics for Materials Design and Engineering
|
| Presentation Title |
Developing CALPHAD Databases for Thermophysical Properties of Metals and Alloys |
| Author(s) |
Hailin Chen, Masoomeh Ghasemi, Qing Chen |
| On-Site Speaker (Planned) |
Qing Chen |
| Abstract Scope |
Calphad method has proved extremely useful in providing fundamental phase diagram information for industrial relevant multicomponent systems in a
computational way. Its success relies on the simple and efficient scheme it adopted to model the Gibbs energy of each phase hierarchically from low-order systems to high-order ones, and evaluate model parameters by considering both experimental observations and ab initio calculation data. The method later found its way for describing multicomponent diffusivities so that the diffusion controlled phase transformations can be simulated in a multicomponent alloy. Other thermophysical properties, such as volume or density, can also be modeled in a similar fashion. In this talk, we present our recent progress in constructing Calphad models and developing databases for electric resistivity, thermal conductivity and viscosity of metals and alloys. Verification and validation results will be shown and discussed. |
| Proceedings Inclusion? |
Undecided |