The effects of asymmetrical cold rolling on kinetics,grain size and texture in IF steels |
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Authors: | Aurelie Wauthier Helene Regle Jorge Formigoni Gwenola Herman |
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Affiliation: | ArcelorMittal Maizières Research S.A., Voie Romaine, Maizières-lès-Metz, 57283, France |
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Abstract: | Asymmetrical rolling is a promising way to achieve high rolling reductions and potentially grain refinement. However in steels the effect of asymmetrical rolling is not thoroughly quantified. In this paper the impact of cold asymmetrical rolling obtained by changing the roll velocity ratio (from 1.1 to 1.45) on the deformation and recrystallization features has been finely investigated by Electron Back-Scattering Diffraction in a Scanning Electron Microscope. In the investigated conditions (with low thickness reduction), it is found that asymmetrical rolling induces grain refinement and more homogeneous gamma fiber texture. |
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