Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering

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Research of Dynamic Recrystallization of Ferrite in a Low Carbon Steel

Authors
Meng Wang, Yangbo Liu, Qingsong Sun, Qian Tong
Corresponding Author
Meng Wang
Available Online April 2015.
DOI
10.2991/mebe-15.2015.242How to use a DOI?
Keywords
low carbon steel; ferrite; cementite particle; dynamic recrystallization; particle-stimulated nucleation
Abstract

The microstructure evolution of ferrite in a low carbon steel during hot uniaxial compression tests at 700C and 0.01s-1 was investigated by means of OM, SEM, EBSD and TEM. In order to investigate the effect of cementite particles size on dynamic recrystallization (DRX) of ferrite, two kinds of different microstructures consisting of ferrite with similar size and cementite particles with different sizes were adopted by quenching and tempering of a low carbon steel. The results showed that large cementite particles acted as nucleation sites for dynamic recrystallization (DRX) of ferrite by particle-stimulated nucleation (PSN) mechanism, due to the formation of large orientation gradient near them during hot deformation. In the earlier stage, DRX nuclei were mainly formed near cementite particles with size larger than 1 m. With increasing strain, the nuclei would also be formed near particles with size between 0.5 to 1 m. On the contrary, because of much smaller orientation gradient and pinning effect on the dislocation and sub-boundary, the cementite particles with size smaller than 0.3 m retarded dynamic recovery and DRX of ferrite.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
Series
Advances in Engineering Research
Publication Date
April 2015
ISBN
978-94-62520-57-8
ISSN
2352-5401
DOI
10.2991/mebe-15.2015.242How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

risenwbib
TY  - CONF
AU  - Meng Wang
AU  - Yangbo Liu
AU  - Qingsong Sun
AU  - Qian Tong
PY  - 2015/04
DA  - 2015/04
TI  - Research of Dynamic Recrystallization of Ferrite in a Low Carbon Steel
BT  - Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering
PB  - Atlantis Press
SP  - 1081
EP  - 1085
SN  - 2352-5401
UR  - https://doi.org/10.2991/mebe-15.2015.242
DO  - 10.2991/mebe-15.2015.242
ID  - Wang2015/04
ER  -