TC-Python now includes both Diffusion module (DICTRA) calculations and Property Model calculations, meaning that it now has all the functionality available from within Thermo-Calc Graphical Mode as well as the majority of features available with the classic Console Mode. TC-Python can also be used from Jupyter notebooks or comparable interactive Python-consoles.
TC-Python has also been upgraded so that users can now save and easily reuse information from previous calculations, saving you time and ensuring consistency throughout your work. TC-Python comes with many examples to help users get started, as well as its own detailed documentation.
Learn how TC-Python can help you integrate Thermo-Calc into your ICME workflow by visiting the TC-Python page or watching the TC-Python overview video:
Thermo-Calc is pleased to announce the availability of the first materials-specific property model library. Significant research and development has resulted in two martensite and a pearlite model to help users more easily complete calculations using the Property Model Calculator. A bainite model will also soon be available.
These three models are included with the Steel Model Library:
Using the new Pearlite property model, this TTT (time-temperature-transformation) diagram shows times of start (2% transformation) and finish (98% transformation) as functions of isothermal heat treating temperature in an Fe-0.69C-1.80Mn alloy (mass %).
How Do I Get the Steel Model Library?
The Steel Model Library is available for free to all users who have the thermodynamic (TCFE9) and mobility (MOBFE4) steel databases plus a valid Maintenance and Support Subscription.
Thermo-Calc Software is also developing property model libraries for nickel, aluminium and titanium-based alloys. A bainite model is also soon available with the Steel Model Library.
Email Thermo-Calc today to find out more, to inquire about getting a license to access the steel models or to sign up for our newsletter so you can keep up-to-date about future releases: firstname.lastname@example.org.
The Precipitation module (TC-PRISMA) has three new features added in this release.
Pause and Resume Calculations
It is now possible to pause a precipitation simulation, make adjustments and then continue with the simulation. This allows you to visualize the results at various times in the calculation as well as add time at the end of a calculation if you decide more is needed.
General Growth Rate Model
A new General growth rate model is included and based on the Morral-Purdy model. A new example, P_12 , compares the Simplified, General and Advanced growth rate models for an aluminium zirconium.
New Plot Variables
There are two new plot variables available - precipitate composition and number density distribution. Use precipitate composition to track the instantaneous composition of precipitate particles. In particular, it is useful to distinguish different composition sets of the same phase (for example, FCC_A1#2 and FCC_A1#3). The number density distribution variable enables you to retrieve the number density (number of particles per unit volume) of precipitates distributed in different particle sizes.
Thermo-Calc 2019a comes with three useful image improvements.
Users can now choose to save higher quality images, which are better suited for publications and presentations. Right-click on any plot, select Save As and then change the settings under Image Quality.
A bug was also fixed that was causing some SVG and PDF files to be covered by a black layer.
Console Mode users can now export images to JPG format using the DUMP_DIAGRAM command.
Thermo-Calc 2019a includes six new and two updated databases.
New versions of the thermodynamic (TCNI9) and mobility (MOBNI5) nickel-based superalloys databases include these improvements:
Additions to the new thermodynamic (TCTI2) and mobility (MOBTI3) titanium and titanium aluminide-based alloy databases include:
The new versions of the thermodynamic (TCAL6) and mobility (MOBAL5) alumninum-based alloys databases include:
Two thermodynamic databases, one for Mg-based alloys (TCMG5) and one for high entropy alloys (TCHEA3) are updated.
The Effective Bond Energy Formalism (EBEF) most recently proposed by Dupin et al. [1, 2] has been implemented in Thermo-Calc 2019a. This model provides a first approximation to estimate the stability of all endmembers in the Compound Energy Formalism (CEF) for a multicomponent complex phase through an expansion using effective bond energies that can be obtained by fitting to binary endmember DFT data. Due to a significant reduction of the number of necessary parameters, this model allows the use of as many sublattices as there are occupied Wyckoff sites and meanwhile potentially cuts the computational time.
 N. Dupin et al., Calphad XLVII conference, May 27-June 1, 2018, Queretaro, Mexico.
 Dupin, N., U. R. Kattner, B. Sundman, M. Palumbo, and S. G. Fries. 2018. “Implementation of an Effective Bond Energy Formalism in the Multicomponent Calphad Approach.” Journal of Research of the National Institute of Standards and Technology 123 (November): 123020.
Other notable changes in the 2019a release include:
To learn more about all the new and updated databases, read the complete release notes.