T11: Simulation of solidification of 0.7C 3Mn steel
 
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tutorials:t11 [2018/08/01 17:51] – [Step 4: Add the equilibrium solidification path] pwarczoktutorials:t11 [2023/08/02 22:09] (current) – pwarczok
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 //This tutorial was tested on\\ //This tutorial was tested on\\
-MatCalc version 6.01 rel 1.003\\+MatCalc version 6.04 rel 1.001\\
 license: free\\ license: free\\
 database: mc_fe.tdb// database: mc_fe.tdb//
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 ==== Complimentary files ==== ==== Complimentary files ====
  
-Click {{:tutorials:t11:script:t11_2013.mcs|here}} to view the script for this tutorial. +Click {{:tutorials:t11:script:t11_6021003.mcs|here}} to view the script for this tutorial. 
  
    
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 Enter the system composition in weight percent as listed in the subsequent figure selecting **'Global Composition ...'** or pressing the **F7** key. Enter the system composition in weight percent as listed in the subsequent figure selecting **'Global Composition ...'** or pressing the **F7** key.
  
-{{:tutorials:t11:img:t11_composition_2016.png| MatCalc Composition}}+{{:tutorials:t11:img:t11_composition_6050006.png| MatCalc Composition}}
  
 Set initial values with **'Calc'->'Set start values'** or **Ctrl+Shift+F**. Calculate equilibrium at 1600°C. The results in the **'Phase summary'** window are Set initial values with **'Calc'->'Set start values'** or **Ctrl+Shift+F**. Calculate equilibrium at 1600°C. The results in the **'Phase summary'** window are
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 ===== Step 3: Add a Scheil calculation with back-diffusion of carbon ===== ===== Step 3: Add a Scheil calculation with back-diffusion of carbon =====
  
-The solidification of the current steel as calculated by the Scheil model predicts final solidification at too low temperature. In reality, **carbon atoms are fast enough** not only in the liquid but also in the solid to be able **to equilibrate between the solid and liquid phases**. Therefore, to get more realistic simulation results, we must allow for **back-diffusion of carbon**. First, in order not to loose the results of the previous simulation, rename the current buffer to **'Scheil'** and create a new one with the name **'Scheil with BD of C'**. Open the Scheil calculation dialog with **'Calc - Scheil calculation ...'** or press **Ctrl+Alt+T**. Highlight carbon in the list box and press **'Toggle'**.+The solidification of the current steel as calculated by the Scheil model predicts final solidification at too low temperature. In reality, **carbon atoms are fast enough** not only in the liquid but also in the solid to be able **to equilibrate between the solid and liquid phases**. Therefore, to get more realistic simulation results, we must allow for **back-diffusion of carbon**. First, in order not to loose the results of the previous simulation, rename the current buffer to **'Scheil'** and create a new one with the name **'Scheil with BD of C'**. Open the Scheil calculation dialog with **'Calc - Scheil calculation ...'** or press **Ctrl+Alt+T**. Highlight carbon in the list box and press **'Toggle'** or double-click directly on the relevant **'no'** text.
  
 {{:tutorials:t11:img:t11_scheil_calc_toggle_2016.png| MatCalc scheil calculation}} {{:tutorials:t11:img:t11_scheil_calc_toggle_2016.png| MatCalc scheil calculation}}
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 We are going to display the Scheil curve with and without back-diffusion in one window. Therefore, first, lock the previous Scheil calculation, which is still displayed in the diagram window and name it **'Scheil'**. We are going to display the Scheil curve with and without back-diffusion in one window. Therefore, first, lock the previous Scheil calculation, which is still displayed in the diagram window and name it **'Scheil'**.
  
-{{:tutorials:t11:img:t11_options_window_2016.png| MatCalc options}}+{{:tutorials:t11:img:t11_options_window_6050006.png| MatCalc options}}
  
 Then, we make sure that the just created buffer (**'Scheil with BD of C'**) is selected as current buffer for the plot in the options window and drag and drop the **'F$LIQUID'** variable into the plot (note that alternatively you can use the 'Lock and duplicate series' option accessible via the right mouse button or the 'View' menu). Rename the new series to **'Scheil with BD of C'**. The new diagram looks like the following figure. Then, we make sure that the just created buffer (**'Scheil with BD of C'**) is selected as current buffer for the plot in the options window and drag and drop the **'F$LIQUID'** variable into the plot (note that alternatively you can use the 'Lock and duplicate series' option accessible via the right mouse button or the 'View' menu). Rename the new series to **'Scheil with BD of C'**. The new diagram looks like the following figure.
tutorials/t11.1533138702.txt.gz · Last modified: 2018/08/01 17:51 by pwarczok
 
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