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EBSD analysis of a Ti-IF steel subjected to hot torsion in the ferritic region

Oudin, A., Hodgson, P.D. and Barnett, M.R. 2008, EBSD analysis of a Ti-IF steel subjected to hot torsion in the ferritic region, Materials science and engineering. A. Structural materials : properties, microstructures and processing, vol. 486, no. 1, pp. 72-79, doi: 10.1016/j.msea.2007.09.045.

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Title EBSD analysis of a Ti-IF steel subjected to hot torsion in the ferritic region
Author(s) Oudin, A.
Hodgson, P.D.
Barnett, M.R.ORCID iD for Barnett, M.R. orcid.org/0000-0001-8287-9044
Journal name Materials science and engineering. A. Structural materials : properties, microstructures and processing
Volume number 486
Issue number 1
Start page 72
End page 79
Total pages 8
Publisher Elsevier
Place of publication Lausanne, Switzerland
Publication date 2008-07
ISSN 0921-5093
1873-4936
Keyword(s) IF steel
ferrite deformation
warm deformation
flow curve
torsion test
Summary The effect of grain size on the warm deformation behaviour of a titanium stabilized interstitial free steel was investigated using hot torsion. Tests were performed at temperatures between 765 °C and 850 °C at strain rates between 0.003 s−1 and 1 s−1 for samples with grain sizes of 25 μm, 75 μm and 150 μm. The structures were observed using EBSD analysis and are consistent with those expected for materials dominated by dynamic recovery. Some evidence was found for small amounts of thermally induced migration of pre-existing boundary (bulging) and for the generation of new segments of high angle boundaries by continuous dynamic recrystallization. The early onset of a steady-state flow stress in the finer grained samples is attributed to one or a combination of thermally induced boundary migration and enhanced rates of recovery near subgrain (and grain) boundaries.
Language eng
DOI 10.1016/j.msea.2007.09.045
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 870302 Metals (e.g. Composites, Coatings, Bonding)
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2008
Copyright notice ©2007, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30017923

Document type: Journal Article
Collection: Centre for Material and Fibre Innovation
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