Abstract
Some numerical models such as central atoms model (CAM) and superelement model were used to simulate the thermodynamics of austenite decomposition in the Fe-C-Mn-Si TRIP (transformation induced plasticity) steels. Thermodynamic calculations were carried out under a para-equilibrium (PE) condition. The results show that certain silicon content can accelerate the polygonal ferritic transformation and increase the volume fraction and stability of retained austenite by retarding the precipitation of carbides during the bainitic transformation.
Similar content being viewed by others
References
Tersner G, Werner E A. Modelling of Retained Austenite in Low-Alloyed TRIP Steels [J]. JOM, 1997, 49(9): 62–65.
Zarei H A, Yue S. Ferrite Formation Characteristics in Si-Mn TRIP Steels [J]. ISIJ International, 1997, 37(6): 583–589.
Tanaka T, Aaronson H I, Enomoto M. Calculation of α/γ Phase Boundaries in Fe-C-X1-X2 Systems from the Central Atoms Model [J]. Metall Mater Trans, 1995, 26A(3): 535–545.
HSU T Y, Mou Y W. Thermodynamics of the Bainitic Transformation in Fe-C Alloys [J]. Acta Metall, 1984, 32(9): 1469–1481.
Miettinen J. Simple Semiempirical Model for Prediction of Austenite Decomposition and Related Heat Release During Cooling of Low Alloyed Steels [J]. Ironmaking and Steelmaking, 1996, 23(4): 346–356.
Ghosh G, Olson G B. Simulation of Para-equilibrium Growth in Multicomponent Systems [J]. Metall Mater Trans, 2001, 32A(3): 455–467.
Enomoto M, Aaronson H I. Calculation of α+γ Phase Boundaries in Fe-C-X Systems From the Central Atoms Model [J]. Calphad, 1985, 9(1): 43–58.
Tsukatani I, Hashimoto S, Inoue T. Effects of Silicon and Manganese Addition on Mechanical Properties of High-Strength Hot-Rolled Sheet Steel Containing Retained Austenite [J]. ISIJ International, 1991, 31(9): 992–1000.
Author information
Authors and Affiliations
Corresponding author
Additional information
Foundation Item: Item Sponsored by National Natural Science Foundation of China (50334010)
Rights and permissions
About this article
Cite this article
Zhu, Lj., Wu, D. & Zhao, Xm. Effect of Silicon Content on Thermodynamics of Austenite Decomposition in C-Si-Mn TRIP Steels. J. Iron Steel Res. Int. 13, 57–60 (2006). https://doi.org/10.1016/S1006-706X(06)60062-9
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1016/S1006-706X(06)60062-9