Mobility databases are developed in a similar fashion as thermodynamic databases, i.e. following the CALPHAD method. The difference being that a mobility database contains optimised parameters that enter a model that describes the logarithm of the atomic mobility, rather than the Gibb's free energy, which is the case for a thermodynamic database. The parameters in a mobility database have been optimised by experts after assessing available experimental information and using an optimisation tool specifically designed for this purpose and which is provided within the add-on Diffusion module (DICTRA) and Precipitation module (TC-PRISMA).
The so-called thermodynamic factors, which are required during the optimisation of mobility parameters from experimental inter- or intrinsic-diffusion data, depend on the selected thermodynamic description. For this reason a mobility database is only fully compatible to a specific thermodynamic description.
At Thermo-Calc Software, we have extensive experience in this field, including employees who pioneered this work more than 20 years ago.
If you need assistance in selecting the optimum set of databases, please do not hesitate to contacts us.
MOBFE4 is the specialised steel database compatiable with the TCFE9 database.
MOBMG1 is the specialised magnesium-based database and is intended for use with the TCMG5 database.
MOBCU3 is the specialised copper-based database and is intended for use with the TCCU3 database.
MOBSLD1 is the specialised solder alloys database and is intended for use with TCSLD3.
MOBHEA1 is the specialised high entropy alloys database and is intended for use with TCHEA3.
MOBSI1 is the specialised silicon-based database and is intended for use with the TCSI1 database.
MOB2 database is intended for use with TCFE5 and older versions as well as SSOL6 databases and can, to some extent, be used for other alloys as well.