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Effect of Deformation Temperature on Microstructure Evolution for 20CrMnTiH Steel during Hot Compression

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Abstract:

The hot compressive experiments of 20CrMnTiH steel were performed on Gleeble-3500 thermo-simulation machine. The dynamic recrystallization mathematical models were developed based on experimental data. The effect laws of the deformation temperature on the microstructure evolution of 20CrMnTiH steel were investigated by coupling finite element method (FEM) with the developed dynamic recrystallization mathematical models. The results show that the dynamic recrystallization and the average grain sizes increased with the increasing deformation temperature and the higher deformation temperature is instrumental to dynamic recrystallization. The average grain size simulated using FE model agree well with the corresponding experimental results.

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Periodical:

Advanced Materials Research (Volume 1095)

Pages:

727-731

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1095.727

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Online since:

March 2015

Authors:

Wei Feng*, Shu Ting Wu

Keywords:

Dynamic Recrystallization, Finite Element Simulation, Grain Size, Hot Compression

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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