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Modelling of Microstructure Evolution during Thermoplastic Deformation of Steel by a Finite Element Method

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conference contribution
posted on 23.01.2017, 13:50 by Z. Jin, K. Li, X. Wu, Hongbiao Dong
A microstructure evolution model was coupled into finite element method to evaluate the dynamic recrystallization (DRX) and deformation behavior of low carbon steel under hot working. The flow stress curves and recrystallized grain size is measured from hot compression tests performed on Gleeble-1500. The recrystallization kinetics is expressed as Avrami equation calculated from measured flow stress curves including the effect of work hardening (WH), dynamic recovery (DRV)and DRX. Taking a hot compressed cylinder sample of Q235 as an example, an obvious non-uniform deformation is observed although the assumption of uniform deformation is commonly applied in this case. Microstructure evolution and macroscopic mechanical behavior of this sample were simulated and compared with measurements to examine the availability of the developed model.

Funding

The authors gratefully acknowledge the funding support from National Natural Science Foundation of China (Grant No. 51105328) and Talent Engineering of Yangzhou University in the new century.

History

Citation

Materials Today: Proceedings, 2015, 2, pp. S460-S465

Author affiliation

/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering

Source

Joint 3rd UK-China Steel Research Forum & 15th CMA-UK Conference on Materials Science and Engineering

Version

VoR (Version of Record)

Published in

Materials Today: Proceedings

Publisher

Elsevier

eissn

2214-7853

Copyright date

2015

Available date

23/01/2017

Publisher version

http://www.sciencedirect.com/science/article/pii/S2214785315001339?via=ihub

Language

en