Micro-Tensile Behavior of Mg-Al-Zn Alloy Processed by Equal Channel Angular Pressing (ECAP)

Commercially available AZ31 magnesium alloy was four times extruded in an equal rectangular channel using three different routes (A, B, and C). Micro tensile deformation tests were performed at room temperature with the aim to reveal any plastic anisotropy developed during the extrusion. Samples for...

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Bibliographic Details
Published in:Materials 2018-09, Vol.11 (9), p.1644
Main Authors: Máthis, Kristián, Köver, Michal, Stráská, Jitka, Trojanová, Zuzanka, Džugan, Ján, Halmešová, Kristýna
Format: Article
Language:English
Subjects:
Aluminum base alloys
Annealing
Deformation
Deformation mechanisms
Elongation
Equal channel angular pressing
Extrusion billets
Grain boundaries
Grain size
Magnesium alloys
Magnesium base alloys
Microstructure
Plastic anisotropy
Room temperature
Shear strain
Tensile deformation
Tensile stress
Yield stress
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Summary:Commercially available AZ31 magnesium alloy was four times extruded in an equal rectangular channel using three different routes (A, B, and C). Micro tensile deformation tests were performed at room temperature with the aim to reveal any plastic anisotropy developed during the extrusion. Samples for micro tensile experiments were cut from extruded billets in different orientations with respect to the pressing direction. Information about the microstructure of samples was obtained using the electron back-scatter diffraction (EBSD) technique. Deformation characteristics (yield stress, ultimate tensile stress and uniform elongation) exhibited significant anisotropy as a consequence of different orientations between the stress direction and texture and thus different deformation mechanisms.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma11091644