Magnesium Technology 2016 pp 251-256 | Cite as
Formability of Extruded Magnesium Alloy Sheets with Different Textures
Abstract
The rolling of magnesium sheets is carried out in a process consisting of multiple passes with low degree of deformation per pass. The low degree of formability of magnesium and its alloys makes it necessary to carry our rolling in multiple steps. Alternatively, it has been shown that the extrusion of flat and thin plates is feasible.
By applying this process on alloys AZ31, ZE10 and ME21, thin sheets with final gauge below 1 mm have been achieved. A microstructure and texture analysis as well as the mechanical properties of these sheets reveal distinct differences compared to a classically rolled counterpart.
A series of Nakajima tests has been used to investigate the formability of the sheets. Forming limit curves have been derived at elevated temperatures. Strain path related differences in the formability at elevated temperatures of such sheets are discussed based on an EBSD analysis of deformed samples for the alloys.
Keywords
extrusion sheet EBSD Forming limitsPreview
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