Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revisionPrevious revision
Next revision
Previous revision
Next revisionBoth sides next revision
tutorials:t8 [2019/07/31 11:11] – [Upper boundary of delta-ferrite, BCC_A2] pwarczoktutorials:t8 [2019/07/31 11:35] – [T8: Calculating a phase diagram in a binary system] pwarczok
Line 2: Line 2:
  
 //This tutorial was tested on\\ //This tutorial was tested on\\
-MatCalc version 6.01 rel 1.003\\+MatCalc version 6.02 rel 1.003\\
 license: free\\ license: free\\
 database: mc_fe.tdb// database: mc_fe.tdb//
Line 43: Line 43:
  
 Beginning at the high-temperature end of the diagram, the uppermost phase boundary at a composition of 0.05 wt.% C is between a single-phase liquid region and a liquid and delta-ferrite (BCC_A2) region. The first boundary which must be found is, therefore, a BCC_A2 phase boundary.\\ Beginning at the high-temperature end of the diagram, the uppermost phase boundary at a composition of 0.05 wt.% C is between a single-phase liquid region and a liquid and delta-ferrite (BCC_A2) region. The first boundary which must be found is, therefore, a BCC_A2 phase boundary.\\
-To locate the boundary, an equilibrium must first be calculated reasonably close to the expected boundary temperature. It can be seen that the line lies somewhere between 1538°C (the melting temperature of pure iron) and 1500°C. Click on the {{:tutorials:t8:img:icon_equilibrium.png| MatCalc icon}} icon and enter the temperature **'1540'**. (If this gives an error message, select **'Calc > Set start values'** then repeat the equilibrium calculation.) Then click on {{:tutorials:t8:img:search_phase_boundary.png| MatCalc icon}} to open the **'Search phase boundary'** window. Select **'Temperature'** in the left-hand column and **'BCC_A2'** as the target phase. The 'Output' window should show the following message:+To locate the boundary, an equilibrium must first be calculated reasonably close to the expected boundary temperature. It can be seen that the line lies somewhere between 1538°C (the melting temperature of pure iron) and 1500°C. Click on the {{:tutorials:t8:img:icon_equilibrium.png| MatCalc icon}} icon and enter the temperature **'1530'**. (If this gives an error message, select **'Calc > Set start values'** then repeat the equilibrium calculation.) Then click on {{:tutorials:t8:img:search_phase_boundary.png| MatCalc icon}} to open the **'Search phase boundary'** window. Select **'Temperature'** in the left-hand column and **'BCC_A2'** as the target phase. The 'Output' window should show the following message:
    
 <code>Tsol 'BCC_A2': 1533.99 C (1807.14 K) iter: 8, time used: 0.03 s</code> <code>Tsol 'BCC_A2': 1533.99 C (1807.14 K) iter: 8, time used: 0.03 s</code>
tutorials/t8.txt · Last modified: 2023/08/01 16:28 by pwarczok
 
Recent changes RSS feed Donate Powered by PHP Valid XHTML 1.0 Valid CSS Driven by DokuWiki