Thermophysical Property Database

The thermophysical property database PanCo2026_TP is compatible with the PanCo2026_TH thermodynamic database and suitable for the simulation of thermophysical properties of Co-based alloys. It includes the molar volume data for all the phases, surface tension and viscosity properties for the liquid phase.

Molar Volume

The current molar volume database covers all 379 phases assessed in the Pan2026_TH database. It is used to calculate the density, thermal expansion and solidification shrinkage of Co alloys.

The simulated density changes vs. temperature of a series of Co-based alloys are shown below to validate the current PanCo2026_TP database.

Figure 3.1: Density of Co-Ni liquid mixture [2006Fan]

Figure 3.2: Molar volume of Co-Si Fcc and Hcp binary alloys at 298K [2006Hal] 

Surface Tension

The surface tension of the liquid phase is added into the property database. Figure 3.3 shows the surface tension of a series of Al-Co alloys in comparison with experimental data.

Figure 3.3: Surface tension of Al-Co alloys

Viscosity

The viscosity of the liquid phase is added into the property database.Figure 3.4 shows the viscosity of Co-Si alloy at 1873 K in comparison with experimental data.

Figure 3.4: Viscosity of the Co-Si alloy at 1873 K

[2006Fan] L. Fang, et al., Density and molar volume of liquid Ni-Co binary alloys, Materials Science and Engineering B, 132 (2006): 174-178.

[2006Hal] B. Hallstedt, Molar volumes of Al, Li, Mg and Si, Calphad, 31(2) (2006): 292-302.