MOBHEA3: TCS High Entropy Alloy Mobility Database

The TCS High Entropy Alloy Mobility Database (MOBHEA) is a kinetic database containing atomic mobility data for high-entropy alloys (HEA) presented in a format suitable for simulation of diffusion controlled phenomena using the add-on Diffusion Module (DICTRA) and/or Precipitation Module (TC-PRISMA). It can also be used together with all Thermo‑Calc programming interfaces.

In MOBHEA3, atomic mobilities for BCC_A2 phase are additionally assessed.

MOBHEA3 is compatible and primarily recommended for use in combination with the TCHEA8 thermodynamic database.

MOBHEA: TCS High Entropy Alloy Mobility Database Revision History. The current version of the database is MOBHEA3. See the link for any subversion release details.

The CALPHAD Method

The Thermo‑Calc databases are developed with the CALPHAD approach based on various types of experimental data and theoretical values (e.g. those from first-principles calculations). It is based on the critical evaluation of binary, ternary, and for some databases, important higher order systems. This enables predictions to be made for multicomponent systems and alloys of industrial importance. Among these, the thermodynamic database is of fundamental importance.

The CALPHAD Method and the Thermo‑Calc Databases. Also visit the video tutorials on our website or our YouTube playlist.

Additional Resources

Go to the High Entropy Alloys Databases page on our website where you can access this Technical Information plus learn more about the compatible thermodynamic database and its Validation and Calculation Examples Collection. Also explore further applications of Thermo‑Calc to high entropy alloys including links to resources such as examples, publications, and more.