Dynamic strain-induced ferrite transformation during hot compression of low carbon Si-Mn steels

Cai, Ming-Hui, Ding, Hua and Lee, Young-Kook 2011, Dynamic strain-induced ferrite transformation during hot compression of low carbon Si-Mn steels, Materials transactions, vol. 52, no. 9, pp. 1722-1727.

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Title Dynamic strain-induced ferrite transformation during hot compression of low carbon Si-Mn steels
Author(s) Cai, Ming-Hui
Ding, Hua
Lee, Young-Kook
Journal name Materials transactions
Volume number 52
Issue number 9
Start page 1722
End page 1727
Total pages 6
Publisher Nihon Kinzoku Gakkai
Place of publication Sendai, Japan
Publication date 2011
ISSN 1345-9678
1347-5320
Keyword(s) dynamic ferrite transformation
grain refinement
hot compression
low carbon steel
silicon addition
undercooling of austenite
Summary The dynamic strain-induced transformation (DSIT) of austenite to ferrite was investigated under different undercooling conditions using three low carbon Si-Mn steels. The undercooling of austenite (ΔT) was controlled by varying the cooling rate between austenitization and deformation temperatures. Uniform DSIT ferrite grains (∼2.3 μm) were produced at a relatively high deformation temperature above 840°C using a low carbon high Si steel (0.077C-0.97Mn-1.35Si, mass%) in connection with a larger ΔT. The critical conditions for DSIT were determined based on the flow stress-strain curves measured during hot compression tests. Influence of deformation temperature on DSIT of low carbon Si-added steel was also discussed.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2011, The Japan Institute of Metals
Persistent URL http://hdl.handle.net/10536/DRO/DU:30047876

Document type: Journal Article
Collection: Institute for Frontier Materials
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