| 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 |
Measurements of Thermophysical Properties of Metals and Alloys as Input for Computational Thermodynamics |
| Author(s) |
Erhard Kaschnitz |
| On-Site Speaker (Planned) |
Erhard Kaschnitz |
| Abstract Scope |
Thermophysical data are essential for computational thermodynamics to establish valid models. A variety of measurement techniques to obtain thermophysical properties has evolved the past decades, but not many of them are useful to investigate metals and alloys in the high temperature solid and liquid regions, especially if materials are reactive. An overview of current state-of-the-art measurement approaches for high temperature metallic specimens is given, outlining the expected benefit of each method.
Measurements of thermophysical properties are performed under conditions close to, but also far from thermodynamic equilibrium, which influences the obtained results. Kinetic effects have always to be considered when thermophysical data is used as input for computational thermodynamics, as well as inevitable measurement uncertainties; in particular when data is extrapolated.
Examples of obtained results of different measurement techniques for solid and liquid metallic specimens are presented; the significance of kinetic and measurement uncertainties is discussed. |
| Proceedings Inclusion? |
Undecided |