Thermodynamic Database for TiAl-Based Alloys
Al, Cr, Mo, Nb, Ta, Ti, V, W and Zr
B, C, Mn, N, O, Si and Sn
– Thermodynamic database (TH), Mobility database (MB), and Molar volume (MV) database for multi-component TiAl-based alloys.
- The PanTiAl_TH thermodynamic database consists of 16 components, 185 phases and 98 fully assessed binary and ternary systems. The database is validated by TiAl-based alloys.
- The PanTiAl_MB mobility database includes assessed mobility model parameters for the Liquid, Bcc, Fcc, and Hcp solution phases. It is compatible with the PanTiAl_TH and suitable for the simulation of diffusion controlled phenomena of multi-component TiAl-based alloys.
- The PanTiAl_MV molar volume database covers all the 184 phases assessed in the PanTiAl_TH, and can be combined with the thermodynamic database for the simulation of thermo-physical properties of TiAl-based alloys, such as density, thermal expansion, and solidification shrinkage.
Calculated Ti-Al binary phase diagram
PanTiAl database focuses in the composition region with as high as 50at% of Al, thermodynamic description for the Ti-Al binary, as well as Ti-Al-X (X represents Cr, Mn, Mo, Si, V, W) ternaries are critically important. An example shows the calculated Ti-Al binary phase diagram.
Calculated liquidus projection of the Ti-Al-Nb system with experimentally determined primary solidified phase
The calculated liquidus projection of the Ti-Al-Nb system in which the symbols indicating the experimentally determined primary solidified phases.
Comparison of calculated and measured phase fractions vs. temperature for TNM alloy
A comparison of the calculated and measured phase fraction as a function of temperature for TiAl-based TNM alloy.
Comparison of calculated and measured a-transus temperature for 22 TiAl-based alloys
This example compares the calculated and measured a-transus temperature for 22 TiAl-based alloys.
PanTiAl_TH can be integrated with PanTiAl_MB and PanTiAl_MV to simulate diffusion controlled phenomena and thermo-physical properties of multi-component TiAl-based alloys.