| Both sides previous revisionPrevious revisionNext revision | Previous revisionLast revisionBoth sides next revision |
| tutorials:t20 [2023/08/18 13:13] – [Grain growth of pure Fe-matrix] pwarczok | tutorials:t20 [2023/08/18 13:37] – [Grain growth of pure Fe-matrix] pwarczok |
|---|
| {{:tutorials:t20:img:t20_precipitation_domains_msevol_grainstructure_6050006.png?650|}} | {{:tutorials:t20:img:t20_precipitation_domains_msevol_grainstructure_6050006.png?650|}} |
| |
| Using **Calc > precipitation kinetics**, set up an isothermal simulation with an end-time of 3600 s (1 hour) and a temperature of 900°C. Click on **'Go'**. The simulation will be over very rapidly compared to precipitation simulations. | Using **'Calc' -> 'Microstructure simulation'**, set up an isothermal simulation with an end-time of 3600 s (1 hour) and a temperature of 900°C. Click on **'Go'**. The simulation will be over very rapidly compared to precipitation simulations. |
| |
| Create a plot of type 'p1'. In the **'variables'** window, find the section entitled **'prec domain struct sc'** ('sc' standing for 'single class') and expand to show **GD$***-variables. Expand this one step further to show **GD$austenite**, and drag this to the plot window. Change the (default x-axis label to read **time [h]** and modify the scaling factor to **1/3600**. Change the y-axis title to **Grain diameter [μm]** and modify the scaling factor to **1e6**. | Create a plot of type 'p1'. In the **'variables'** window, find the section entitled **'prec domain struct sc'** ('sc' standing for 'single class') and expand to show **GD$***-variables. Expand this one step further to show **GD$austenite**, and drag this to the plot window. Change the (default x-axis label to read **time [h]** and modify the scaling factor to **1/3600**. Change the y-axis title to **Grain diameter [μm]** and modify the scaling factor to **1e6**. |
| The final simulation demonstrates the effect of the precipitates on the grain growth. In order to account for this effect. a precipitate phase needs to be defined which will appear in the simulation. In the **'Phase status'** window, create the precipitate phase for **'FCC_A1#01'** phase, and select the dislocations as nucleation sites (in **'nucleation'** tab). | The final simulation demonstrates the effect of the precipitates on the grain growth. In order to account for this effect. a precipitate phase needs to be defined which will appear in the simulation. In the **'Phase status'** window, create the precipitate phase for **'FCC_A1#01'** phase, and select the dislocations as nucleation sites (in **'nucleation'** tab). |
| |
| {{:tutorials:t20:img:t20_nbc_nucleation_sites_6011003.png?650|}} | {{:tutorials:t20:img:t20_nbc_nucleation_sites_6050006.png?650|}} |
| |
| Once again, setup the isothermal simulation for 3600 s at 900°C and plot the grain diameter of austenite when the calculation is completed. | Once again, setup the isothermal simulation for 3600 s at 900°C and plot the grain diameter of austenite when the calculation is completed. |
