Abstract
The study aims to postulate a theoretical hypothesis for the finishing period of ferritic rolling technique of the low carbon steel. The static softening behavior during multistage hot deformation of a low carbon steel has been studied by double hot compression tests at 700-800 °C and strain rate of 1 s−1 using a Gleeble-3500 simulator. Interrupted deformation is conducted with interpass times varying from 1 to 100 s after achieving a true strain of 0.5 in the first stage. The results indicate that the flow stress value at the second deformation is lower than that at the first one, and the flow stress drops substantially. The static softening effects increase with the increase of deformation temperature, holding temperature, and interpass time. The value of the ferritic static softening activation energy is obtained, and the static softening kinetics is modeled by the Avrami equation.
This is a preview of subscription content, log in via an institution to check access.
References
M.R. Barnett, J.J. Jonas, Distinctive Aspects of the Physical Metallurgy of Warm Rolling, ISIJ Int., 39, p 856–873 (1999)
J.J. Jonas, Effects of Shear Band Formation on Texture Development in Warm-rolled IF Steels, J. Mater. Process. Tech., 117, p 293–299 (2001)
H. Groβheim, K. Schotten, W. Bleck, Physical Simulation of Hot Rolling in the Ferrite Range of Steels, J. Mater. Process. Tech., 60, p 609–614 (1996)
H Yu, Y.L Kang, Z.Z. Zhao, X. Wang, L.B. Chen, Microstructural Characteristics and Texture of Hot Strip Low Carbon Steel Produced by Flexible Thin Slab Rolling, Mater. Charact., 56, p 158–164 (2006)
I.B. Tmimokhina, A.I. Nosenkov, A.O. Humphreys, J.J. Jonas, E.V. Pereloma, Effect of Alloying Elements on the Microstructure and Texture of Warm Rolled Steels, ISIJ Int., 44, p 717–724 (2004)
D.S. Liu, A.O. Humphreys, M.R. Toroghinezhad, J.J. Jonas, The Deformation Microstructure and Recrystallization Behavior of Warm Rolled Steels, ISIJ Int., 42, p 751–759 (2002)
S. Serajzadeh, Modelling the Warm Rolling of A Low Carbon Steel, Mater. Sci. Eng., A., 371, p 318–323 (2004)
W.P. Sun, E.B. Hawbolt, Prediction of the Onset of Static Recrystallization after Hot Deformation, ISIJ Int., 35, p 908–913 (1995)
[Z. Gronostajski, New Method of Static Softening Kinetics Determination, J. Mater. Process. Technol., 157–158, p165–170 (2004)
E.I. Poliak, J.J. Jonas, Prediction of Interpass Softening from the Strain Hardening Rate Prior to Unloading, ISIJ Int. 44, 1874–1881 (2004)
A.M. Elwazri, E. Essadiqi, S. Yue, The Kinetics of Static Recrystallization in Microalloyed Hypereutectoid Steels, ISIJ Int., 44, p 162–170 (2004)
K. Zhao, Z.D. Wang, J.H. Wu, X.M. He, X.H. Liu, G.D. Wang, Static Softening Behavior of IF Steel after Ferritic Hot Deformation, J. Iron Steel Res., 11, p 18–21, in Chinese (1999)
Acknowledgment
This study was supported by the Nature Science Fund of Hebei Province under Contract No. E2007000374.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Dong, H., Cai, D., Zhao, Z. et al. Investigation on Static Softening Behaviors of a Low Carbon Steel Under Ferritic Rolling Condition. J. of Materi Eng and Perform 19, 151–154 (2010). https://doi.org/10.1007/s11665-009-9447-1
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11665-009-9447-1