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2015 | 128 | 4 | 795-800
Article title

The Influence of Rolling Conditions on Deformation Behavior of Magnesium Alloy Sheets

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Abstracts
EN
The influence of texture on deformation behavior was investigated for conventionally rolled magnesium alloy slabs and rolled twin roll cast magnesium alloy strips in the form of sheets. The Mg-Zn based sheets were deformed at room temperature with the tensile axis oriented in the rolling and transversal directions. The texture with respect to different rolling conditions was characterized by X-ray diffraction. In the case of Mg-Zn-rare earth alloy sheets, the basal pole intensity, aligned with the sheet normal direction, is lower for conventionally rolled sheet in comparison to the rolled twin roll cast strip. Difference in angular distribution of basal planes influences on the mechanical behavior of the sheets. The yield strength is higher for the tension along rolling direction than along transversal direction for the conventionally rolled sheets, whereas the opposite deformation behavior is observed for the rolled twin roll cast strips. Furthermore, the planar anisotropy of the yield strength is less pronounced for the rolled twin roll cast strips. The deformation behavior of the sheets was also investigated by the acoustic emission technique. The acoustic emission signal analysis correlates the microstructure and the stress-time curves with active deformation mechanisms. It highlights the activity of a basal slip and tensile twinning, particularly during the transverse direction tension.
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Contributors
author
  • Charles University in Prague, Department of Physics of Materials, Ke Karlovu 5, 12116, Prague 2, Czech Republic
author
  • Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung GmbH, Max-Planck-Str. 1, D21502 Geesthacht, Germany
author
  • Charles University in Prague, Department of Physics of Materials, Ke Karlovu 5, 12116, Prague 2, Czech Republic
author
  • Helmholtz-Zentrum Geesthacht, Zentrum für Material- und Küstenforschung GmbH, Max-Planck-Str. 1, D21502 Geesthacht, Germany
author
  • Charles University in Prague, Department of Physics of Materials, Ke Karlovu 5, 12116, Prague 2, Czech Republic
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv128n479kz
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