System Definer Settings (Single Phase)

The following describes how to set up the D_01_Diffusion_Single_Phase.tcu example from the beginning.

To learn more about the activity nodes and tree structure see About the Activity Nodes.

Add a System Definer Node

  1. Open Thermo‑Calc.
  2. In the Project window, right-click My Project node Icon My Project and select Create New Activity → System Definer.
  3. In the System Definer Configuration window, you select the thermodynamic and kinetic databases to use and select the elements.

For this first example the activity nodes are added one at a time. A faster way to add all the nodes you need is to use the Diffusion template (click My Project node Icon My Project node then under Non-Equilibrium click Diffusion).

Location of the Diffusion Simulation template

Choose the Databases

There are databases for different purposes and material types. This example uses two demonstration databases: FEDEMO (the thermodynamic steels/Fe-alloys database) and MFEDEMO (the kinetic/mobility steels/Fe-alloys database).

  1. In the System Definer Configuration window click the Databases list and select the FEDEMO database.
  2. Click the Button: plus sign to add something Add a database button.
  3. Select the MFEDEMO database.  

    Select the databases

For this first example the databases are added one at a time. A faster way to add both the databases is to add a predefined database Package.

System Definer is where you can choose the database package

Choose the Elements

On the Elements tab, and based on the databases selected, you can select and review elements using a Periodic Table or Alphabetic List format. The demonstration databases have only a small number of elements to choose from.

  1. In the Periodic Table, click Fe.
  2. Click Ni.

    Example of choosing the elements for a System Definer

    When using the System Definer with the Diffusion Calculator, you can keep all phases selected on the Phases and Phase Constitution tab.