Abstract
A model has been proposed to predict phase transformation kinetics and temperature variations on the run-out table of the hot strip rolling process. The finite element and the finite difference methods have been employed to solve equations of heat transfer and phase transformation kinetics. In order to avoid numerical instabilities in the thermal analysis, the governing conduction–convection equation is first transformed to the standard form and then the finite element method has been used to solve this equation. At the same time, a second-order rate equation is coupled with the heat transfer model for including austenite decomposition kinetics in heat transfer analysis. A comparison is made between predicted and experimental cooling curves of a low carbon steel to verify the validity of the model.
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