Abstract Using the internal state variable method, a unified kinetics model, which models both the incubation and transition periods, has been developed to describe the non-isothermal austenitization kinetics of 60Si2CrA… Click to show full abstract
Abstract Using the internal state variable method, a unified kinetics model, which models both the incubation and transition periods, has been developed to describe the non-isothermal austenitization kinetics of 60Si2CrA steel. The validity of adopted thermal and physical parameters of 60Si2CrA in this study is confirmed by the comparison between the tested temperature via K-type thermocouples and the simulated temperature. In addition, the above model was embedded into the software DEFORM-3D through the user defined subroutine USRUPD. Then, a finite element simulation was conducted to predict the evolution of austenite volume fraction distribution during heating, which can guide the heat treatment.
               
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