INPUT_SCHEIL_PROFILE
As per normal procedure, and before entering the DICTRA monitor, you need to read thermodynamic and kinetic data to use this command.
This command takes a previously calculated Scheil segregation profile and performs most of the setup needed to use that profile in a simulation, for example a homogenizing heat treatment.
The command creates a region called SCHEIL_REGION. You then create a linear grid and enter the composition read from the file containing the segregation profile.
After issuing this command, you specify simulation time (SET_SIMULATION_TIME) and simulation temperature (SET_CONDITION, enter GLOBAL
and variable T
) to finalize setup.
In order to limit the computational effort, this feature cannot be combined with the fast diffusers option in the Scheil module.
Press F1 in Thermo‑Calc to search the online help for detailed information about Scheil simulations.
Syntax |
INPUT_SCHEIL_PROFILE |
Prompts |
Enter file location of Scheil segregation profile In interactive mode (the command line), a file dialogue window opens. Navigate to the file containing the Scheil profile. Alternately, if you are working from a macro file, the line should contain the name of the file. An XF.txt file can be created with the EVAL_SEGR command in the Thermo-Calc SCHEIL module. The file is available after the Scheil simulation is finished and contains one line per grid point. See EVALUATE_SEGREGATION_PROFILE for more information and to make sure to use the same number of grid points in the DICTRA region for both commands. |
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Enter width of region Enter the width of the region [m] that contains the Scheil profile. This typically corresponds to the secondary dendrite arm spacing. |
Enter main solid solution phase Enter the name of one of the main solid solution phases. In the next prompt you can enter other phases that enter the simulation. |
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Should more phases be entered in the region Enter Y to enter more phases then enter the phase name as prompted next. |
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Enter phase name Enter the name of another phase that should be entered into the region. |