Abstract
Hot compression tests of microalloyed forging steels 38MnVS were carried out on the Gleeble-3800 thermo-mechanical simulator at the deformation temperatures from 950 to 1150 °C with the strain rates ranging from 0.1 to 10 s−1. The effects of the deformation temperature and strain rate on the austenite dynamic recrystallization and microstructural changes were researched. The experimental results show that the dynamic recrystallization accelerated with the increase of the deformation temperatures and the decrease of the strain rate. The activation energy of dynamic recrystallization was calculated, which was about 275.453 kJ/mol. The relation between the dynamic recrystallization and the Z-parameter was investigated, and the state chart of the dynamic recrystallization of the micro-alloyed forging steel 38MnVS was made according to the experimental data and the deformation parameters.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
DONG Chen-rui, REN Hai-peng, JIN Tong-zhe. Microalloyed Forging Steels [M]. Beijing: Metallurgical Industry Press, 2000 (in Chinese).
Bull. Metadynamic Recrystallization in C Steels [J]. Mater Sci, 2002, 25(4); 291.
Bao Y Z, Adachi Y, Tomota Y. Dynamic Recrystallization by Rapid Heating Followed by Compression for a 17Ni-0. 2C Mar-tensite Steel [J]. Scripta Mater, 2005, 53: 1471.
Karhausen K, Kopp R. Model for Integrated Process and Microstructure Simulation in Hot Forming [J]. Steel Research, 1992, 63(6): 247.
Sarkar A, Chakravartty J K, Samajdar I. The Avrami Kinetics of Dynamic Recrystallization in Cadmium [J], Metallurgical and Materials Transactions, 2010, 41A: 2466.
ZENG Song-sheng, LIU Xun-hui, PENG Wei, et al. The Research on the Dynamic Recrystallization Behavior of the Cold Rolled Substrate SPHE [J]. Steel Rolling, 2011, 28(1): 35 (in Chinese).
Sellar C M, Whiteman J A. Recrystallization and Grain Growth in Hot Rolling [J]. Metal Sci, 1979, 13(3/4): 187.
Wang J, Chen J, Zhao Z, et al. Modeling of Microstructural Evolution in Microalloyed Steel During Hot Forging Process [J]. Acta Metallurgica Sinica, 2006, 19(4): 279.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhang, Tb., Shen, Y., Liu, P. et al. New Type Austenite Dynamic Recrystallization of Microalloyed Forging Steels 38MnVS During Forging Process. J. Iron Steel Res. Int. 20, 57–60 (2013). https://doi.org/10.1016/S1006-706X(13)60098-9
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1016/S1006-706X(13)60098-9