Study of Non-Isothermal Kinetic of Austenite Transformation to Pearlite in CK45 Steel by Friedman Model Free Method

Abstract

In recent years, many researchers have been done about the kinetics of thermal decomposition processes. In this study, The Friedman model free method were used to study the Non-Isothermal kinetic of Austenite Transformation to Pearlite. DTA method was used at cooling rates of 5, 10 and 20, under argon atmosphere. Activation energy as a kinetics parameter was determined by using of Friedman model free methods. The results show that the Activation in Friedman model free method are in range of 40.2-43.

Keywords: Kinetic, Non-Isothermal, Austenite, Pearlite, Friedman model, DTA, Activation Energy.