The Steel Model Library makes it easy to set up time-temperature-transition calculations using a TTT template that is accessed directly from the homescreen of Thermo-Calc. The template has several preconfigured settings to help you set up and calculate the TTT diagram using the Martensite Temperatures, Bainite, and Pearlite Property Models.
The template also includes a plotting mode called TTT mode, which is used to define the Temperature on the y-axis and Time on the x-axis for all selected quantities. For example, as shown in the image here, pearlite/bainite model results will show transformation times for 2%, 50%, and 98% pearlite/bainite, and time independent results, like the Ms temperature, will be drawn as a horizontal line.
The plot is a time-temperature-transformation (TTT) diagram for an En 18 1% chromium steel (Fe-0.48C-0.86Mn-0.25Si-0.18Ni-0.98Cr-0.04Mo, mass %) with a grain size of 53 micrometer, made using the TTT-template and the TTT plotting mode. The plot shows transformation times for 2%, 50%, and 98% pearlite and bainite and time independent results, like the Ms temperature, which are drawn as a horizontal line.