Thermodynamic Database for Cobalt-Based Superalloys
Al, B, C, Co, Cr, Cu, Fe, Mn, Mo, Nb, Ni, Pt, Re, Si, Ta, Ti, W and Zr
– Thermodynamic database (TH), Mobility database (MB), and Molar volume (MV) database for multi-component Cobalt-based alloys.
- The PanCo_TH thermodynamic database consists of 18 components, 306 phases, and 243 fully assessed binary and ternary systems. The database is validated by published phase equilibrium data.
- The PanCo_MB mobility database assessed mobility model parameters for the Liquid, Bcc, Fcc, and Hcp solution phases. It is compatible with PanCo_TH and suitable for the simulation of diffusion controlled phenomena of multi-component cobalt alloys.
- The PanCo_MV molar volume database all the 306 phases assessed in the PanCo_TH, and can be combined with the thermodynamic database for the simulation of thermo-physical properties of Co-based alloys, such as density and thermal expansion.
Comparison of calculated and measured liquidus, solidus and γ’ solvus temperatures
A comparison of the calculated and measured liquidus, solidus and γ’ solvus temperatures for various of Co-based alloys. Good agreement is obtained.
Comparison of the calculated isopleth of the Co-xNi-10Al-7.5W (at.%) with experimental data
The calculated isopleth of the Co-xNi-10Al-7.5W (at.%) in the temperature range of 900 to 1600oC.
The concentration profiles of diffusion couple Co0.5Ni0.5/Cr0.4Ni0.6 heat treated at 1300oC for 50h. The PanCo_TH+MB combined thermodynamic database and mobility database is used to performed the diffusion simulation.
Concentration profiles of diffusion couple Co0.5Ni0.5/Cr0.4Ni0.6 annealed at 1300oC for 50h
Comparison of calculated and measured density of Co-Ni liquid mixture
An example calculation which compares the calculated and measured density of the Co-Ni liquid mixture.