Effect of Prior Microstructure and Heating Rate on the Austenitization Kinetics of 39NiCrMo3 Steel
Mattia Spezzapria, Alessio G. Settimi, Luca Pezzato, Michele F. Novella, Michele Forzan, Fabrizio Dughiero, Stefania Bruschi, Andrea Ghiotti, Katya Brunelli and Manuele Dabalà
Version of Record online: 8 DEC 2016 | DOI: 10.1002/srin.201600267
In this work, the austenitization of the low alloy steel 39NiCrMo3 is studied in order to develop the continuous heating transformation diagrams (CHT) for different prior microstructures, varying the heating rate. It is shown that prior microstructure and also heating rate significantly affect the kinetics of austentization processes. Moreover the various mechanism of austenite formation for each microstructures are described.