Abstract
A constrained chip formation technique, large strain extrusion machining (LSEM), was used to produce bulk magnesium alloy (AZ31B) strips with fine grain size (2–6 μm) and non-basal textures. These characteristics are known to enhance the final formability. The deformation temperature during extrusion-machining was varied by preheating the workpiece to a range of temperatures (50°C to 375°C). Microstructural refinement and texture evolution were studied as function of deformation temperature. It was possible to refine the grain size down to ∼2 μm by restricting the dynamic grain growth at low to moderate deformation temperatures (below 320°C). LSEM was shown to be capable of resulting in non-basal textures at low deformation temperatures (below 220°C) as well as at elevated deformation temperatures (above 420°C). The influence of active deformation mechanisms and dynamic recrystallization on the texture development is also addressed.
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© 2012 TMS (The Minerals, Metals & Materials Society)
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Sagapuram, D., Efe, M., Moscoso, W., Chandrasekar, S., Trumble, K.P. (2012). Non-Basal Textures in Magnesium Alloy Strips Produced by Extrusion-Machining. In: Mathaudhu, S.N., Sillekens, W.H., Neelameggham, N.R., Hort, N. (eds) Magnesium Technology 2012. Springer, Cham. https://doi.org/10.1007/978-3-319-48203-3_23
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DOI: https://doi.org/10.1007/978-3-319-48203-3_23
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48571-3
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