Abstract
The effects of microalloying (Nb, V) and aluminum on the constitutive flow behavior and static recrystallization (SRX) characteristics of microalloyed TWIP steels (Fe-20Mn-0.6C-Al-(Nb,V)) have been investigated using hot compression testing. The effects of temperature, strain and strain rate were determined to estimate the activation energy of SRX as well as the powers of strain and strain rate. While microalloying with V up to 0.3% seems to have little effect on the SRX kinetics, 0.026%Nb significantly slowed down the SRX rate. Addition of 4.9%Al not only increased the flow stress and deformation activation energy, but also retarded the SRX kinetics in comparison to that of the steels with low Al (1.5%), with or without V.
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Somani, M.C., Porter, D.A., Karjalainen, L.P. (2016). On the Hot Deformation and Static Recrystallization Characteristics of Al-Bearing Microalloyed TWIP Steels. In: Holm, E.A., et al. Proceedings of the 6th International Conference on Recrystallization and Grain Growth (ReX&GG 2016). Springer, Cham. https://doi.org/10.1007/978-3-319-48770-0_19
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DOI: https://doi.org/10.1007/978-3-319-48770-0_19
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48626-0
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