20#,60Si2Mn,9Cr18MoV Steel Ferrite Area Dynamic Recovery and Recrystallization Research

Liang Li; Wen Kai Xiao; Tao Tao Fan; Zhou Quan Zhang

doi:10.4028/www.scientific.net/AMR.690-693.197

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 690-69320#,60Si2Mn,9Cr18MoV Steel Ferrite Area Dynamic...

20#,60Si2Mn,9Cr18MoV Steel Ferrite Area Dynamic Recovery and Recrystallization Research

Abstract:

By using the Gleeble - 1500 hot simulation test machine we studied 20#, 60Si2Mn, 9Cr18MoV the three kinds of low, medium and high carbon steels to observe the dynamic recovery and recrystallization of ferrite while in the process of thermoplastic deformation. We calculated the hot deformation activation energy of each kind of steel by combining the stress-strain curve we got in the experiment and the theoretical model of Z parameter. It turns out Q_9Cr18MoV<Q_20#<Q_60Si2Mn. In the meanwhile, microstructure observation through transmission electron microscope shows that the dynamic recrystallization of ferrite is more likely to happen in 9Cr18MoV steel than in 20# steel and in 60Si2Mn steel. These results indicate that the dynamic recrystallization of ferrite is not only determined by stacking fault energy but also closely related with the strain storage energy release degree.

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Periodical:

Advanced Materials Research (Volumes 690-693)

Pages:

197-201

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.690-693.197

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Online since:

May 2013

Authors:

Liang Li, Wen Kai Xiao, Tao Tao Fan, Zhou Quan Zhang

Keywords:

Dynamic Recrystallization (DRX), Stacking Fault Energy (SFE), Strain Storage Energy, Thermal Deformation Activation Energy

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