T_05: Stable and the Metastable Fe-C Phase Diagrams

This example shows how to overlay results from two calculations in the same plot using the Equilibrium Calculator.

  • Folder: Thermo‑Calc
  • File name: T_05_Fe-C_stable_and_metastable_phase_diagram.tcu

Visualizations

This example is included as a tutorial on our website and as part of the Graphical Mode Examples playlist on our YouTube channel.

Open the example project file to review the node setup on the Project window and the associated settings on the Configuration window for each node. For some types of projects, you can also adjust settings on the Plot Renderer Configuration window to preview results before performing the simulation. Click Perform Tree to generate plots and tables to see the results on the Visualizations window.

Plotting Several Calculations in One Diagram

  1. The Plot Renderer activity is first created as a successor to Equilibrium Calculator 1.
  2. Then right-click the Plot Renderer node and select Add predecessor and the results from both equilibrium calculators are in the same plot. In Equilibrium Calculator 1 the stable phase diagram is calculated and in Equilibrium Calculator 2 the metastable phase.

  3. The metastable diagram is obtained by deselecting checkboxes for the GRAPHITE_A9 and DIAMOND_A4 phases on the Metastable Phases node (System Definer 2) → Phases and Phase Constitution tab.

    To make it easier to work with your project, right-click any node and select Rename. In this example, System Definer 1 is renamed to Stable System and System Definer 2 is renamed to Metastable System.

Example of deselecting the graphite phase on System Definer Phases and phase constitution tab

T_05 Fe-C plot result