Improved analytical description for non-isothermal solid-state transformation

A generalized analytical description for non-isothermal solid-state transformation was developed, where a choice of both nucleation modes and approximations to the so-called “temperature integral” and “general temperature integral” is incorporated. The currently general description reduces to the originally analytical model, provided if coarse approximations adopted in [F. Liu, et al., Int. Mater. Rev. 52 (2007) 193] are chosen. Numerical calculations demonstrate that the accuracy of the general description is guaranteed by selecting an optimal combination of the approximations.

Research highlights▶ We extend the analytical model for non-isothermal solid-state phase transformation. ▶ The new model incorporates more accurate approximation for temperature integral. ▶ The new model is precise enough to describe the non-isothermal transformation.