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The production of ultrafine ferrite in low-carbon steel by strain-Induced transformation

Hickson, M.R., Hurley, P.J., Gibbs, R.K., Kelly, Georgina and Hodgson, Peter 2001, The production of ultrafine ferrite in low-carbon steel by strain-Induced transformation, Metallurgical and materials transactions A : physical metallurgy and materials science, vol. 33, no. 4, pp. 1019-1026, doi: 10.1007/s11661-002-0203-5.

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Title The production of ultrafine ferrite in low-carbon steel by strain-Induced transformation
Author(s) Hickson, M.R.
Hurley, P.J.
Gibbs, R.K.
Kelly, Georgina
Hodgson, Peter
Journal name Metallurgical and materials transactions A : physical metallurgy and materials science
Volume number 33
Issue number 4
Start page 1019
End page 1026
Publisher Minerals, Metals & Materials Society
Place of publication Warrendale, PA
Publication date 2001-02-05
ISSN 1073-5623
1543-1940
Summary An investigation into the production of ultrafine (1 µm) equiaxed ferrite (UFF) grains in low-carbon steel was made using laboratory rolling, compression dilatometry, and hot torsion techniques. It was found that the hot rolling of thin strip, with a combination of high shear strain and high undercooling, provided the conditions most suitable for the formation of this type of microstructure. Although high strains could be applied in compression and torsion experiments, large volume fractions of UFF were not observed in those samples, possibly due to the lower level of undercooling achieved. It is thought that ferrite refinement was due to a strain-induced transformation process, and that ferrite grains nucleated on parallel and linear deformation bands that traversed austenite grains. These bands formed during the deformation process, and the undercooling provided by the contact between the strip and the work rolls was sufficient to drive the transformation to homogeneous UFF grains.
Notes Available online: April 17 2007
Language eng
DOI 10.1007/s11661-002-0203-5
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©Springer
Persistent URL http://hdl.handle.net/10536/DRO/DU:30006630

Document type: Journal Article
Collection: School of Engineering and Technology
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