An improved model for bainite formation at isothermal temperatures

An improved model for bainite formation via a displacive mechanism is presented. The model incorporates a temperature-dependent expression for the potential nucleation site density and a linear scaling function to predict the maximum volume fraction of bainite. The model has been validated with respect to the experimental data of three high-silicon steels from the literature and has been found to perform reasonably well for several isothermal transformation cases.