Relevant Topics
About Hardenability of Steel
About the Example
Calculated TTT diagram of Fe–2Mn–1C (wt.%), which shows time-temperature curves for ferrite start (2%), pearlite start (2%), bainite start (2%), 50% and 98% austenite transformation, and the Ms and M50 temperatures for athermal martensite. Arrows in the diagram indicate directions towards high hardenability.
Total martensite percentage, start time of pearlite formation (2% pearlite, unit: second), and start time of bainite formation (2% bainite, unit: second), and start time of ferrite formation (2% ferrite, paraequilibrium mode, unit: second) as a function of Mn and C contents for Fe–Mn–C. Calculated using the Steel Model Library in the Property Model Calculator in Thermo-Calc.
Calculated CCT diagram for the new composition Fe–3M–0.7C in the left plot and terminal fractions of transformation products of the same composition in the right plot