## PanMolybdenum

Thermodynamic database for multi-component Mo-rich alloys

• thermodynamic
• mobility
• molar-volume

## PanMolybdenum

• Number of components: 12
• Number of phases: 168
• Major alloying elements: Al, B, Cr, Hf, Mn, Mo, Re, Si and Ti
• Minor alloying elements: C, Fe, and Zr

PanMolybdenum – Thermodynamic database (TH), Mobility database (MB), and Molar volume (MV) database for multi-component molybdenum alloys.

• The current PanMo_TH thermodynamic database consists of 12 components, 168 phases, and 61 fully assessed binary and ternary systems. It can be used to describe phase equilibrium and thermodynamics of molybdenum-rich alloys.
• The current PanMo_MB mobility database assessed mobility model parameters for the Liquid, Bcc, Fcc, and Hcp solution phases. It is compatible with PanMo_TH and suitable for the simulation of diffusion controlled phenomena of multi-component molybdenum alloys.
• The current PanMo_MV molar volume database covers all the 168 phases assessed in the PanMo_TH, and can be combined with the thermodynamic database for the simulation of thermo-physical properties of molybdenum alloys, such as density and thermal expansion.

Solidification path of the Mo40Si25Ti35 alloy simulated by Scheil model

BSE image of the as-cast microstructure of the Mo40Si25Ti35 alloy

The calculated solidification path of the Mo40Si25Ti35 alloy using Scheil model, and the BSE image of the as-cast microstructure of this alloy. The predicted as-cast microstructure agrees with the observed one well.

Calculated liquidus projection of the Mo-Si-B ternary system with the isothermal lines.

A calculated liquidus projection of the Mo-Si-B system with experimental data.

Coupling PanMo_TH thermodynamic database with PanMo_MB mobility database, user can simulate diffusion controlled phenomena. By integrating PanMo_TH with PanMo_MV, molar volume, density, thermal expansion, and other properties can be calculated for molybdenum alloys. This is an example which compares the calculated and measured molar volume of Mo-Ti Bcc alloys.