Abstract
Different twinning types can be formed on rolling deformation, even at high rolling temperatures. In this work, mechanical twins were studied on cold (at 25°C) and warm (at 250°C) rolled samples of AZ31B magnesium alloy. The influence of the mechanical twins on microstructure and texture evolution was examined by electron back scatter diffraction (EBSD), comparing the twin morphologies and determining their orientation relationships with matrices around them. The results showed that {101̄2}<121̄0> and {101̄1}<121̄0> twins and double twinning affect grain orientations during rolling processes. In addition, on rolled samples were evidenced that the shear bands were developed from doubly-twinned regions, but most of them quickly lost their morphology when applying high rolling temperature due to dynamic recrystallization.
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Catorceno, L.L.C., Herculano, L.F.G., de Abreu, H.F.G. (2015). Deformation Twinning Effects on Texture and Microstructure of AZ31B Magnesium Rolled Samples. In: Manuel, M.V., Singh, A., Alderman, M., Neelameggham, N.R. (eds) Magnesium Technology 2015. Springer, Cham. https://doi.org/10.1007/978-3-319-48185-2_26
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DOI: https://doi.org/10.1007/978-3-319-48185-2_26
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48611-6
Online ISBN: 978-3-319-48185-2
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