Analysis of Recrystallization Kinetics Concerning the Experimental, Computational, and Empirical Evaluation of Critical Temperatures for Static Recrystallization in Nb, Ti, and V Microalloyed Steels

Recrystallization kinetics and two critical temperatures—the non-recrystallization temperature TNR the static recrystallization TSRCT—of five Nb, Ti, V microalloyed steel grades are evaluated. The experimental examination is realized by employing isothermal double-hit compression tests continuous hot torsion tests, both performed on a Gleeble® 3800 thermo-mechanical simulator. results used for assessment of predicted using four empirical equations from literature, validation simulated TSRCT. thermokinetic computer simulations mean-field microstructure modeling software MatCalc. Analysis shows that higher microalloying contents increase temperatures, TSRCT, whereby effect retardation Nb more pronounced than Ti or V. most accurate reproduction behavior examined employed physics-based simulation approach.