Effect of grain size on deformation twinning behaviour of high MN steel
Ghaderi, A., Sabirov, I. and Barnett, M. R. 2008, Effect of grain size on deformation twinning behaviour of high MN steel, in Recent Developments in Advanced High Strength Steels Processing: Proceedings of the 47th Conference of Metallurgists (COM2008), Canadian Institute of Mining, Metallurgical and Petroleum, Montréal, Canada, pp. 71-81.
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Title
Effect of grain size on deformation twinning behaviour of high MN steel
Recent Developments in Advanced High Strength Steels Processing: Proceedings of the 47th Conference of Metallurgists (COM2008)
Editor(s)
Wanjara, P. Elwazri, A.M.
Publication date
2008
Conference series
Conference of Metallurgists
Start page
71
End page
81
Publisher
Canadian Institute of Mining, Metallurgical and Petroleum
Place of publication
Montréal, Canada
Summary
The effect of grain size on the mechanical properties and deformation twinning behaviour in high manganese steel was investigated. In order to generate different grain sizes, the samples were subjected to hot rolling, cold rolling and annealing. Room temperature tensile testing of the steel with different grain sizes (5-50 µm) indicated the occurrence of twinning induced plasticity (TWIP) in all the samples. Also, changes in work-hardening behaviour accompanied changes in the grain size. The results are discussed in terms of the enhanced sensitivity of twinning to the grain size.