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Licensed Unlicensed Requires Authentication Published by De Gruyter October 15, 2021

Anisotropy in tensile behavior of an extruded Mg-4.50Zn-1.13Ca (wt.%) alloy

Yuzhou Du, Mingyi Zheng, Yanfeng Ge and Bailing Jiang

Abstract

The present study investigated anisotropy in tensile behavior of an extruded Mg-4.50Zn-1.13Ca (wt.%) alloy through tensile testing along different tilt angles relative to the extrusion direction. Results showed that the as-extruded Mg-4.50Zn-1.13Ca (wt.%) alloy exhibited anisotropy in tensile behavior due to the formation of basal texture. Basal slip, prismatic slip and tensile twinning were the dominant deformation modes depending on the tensile direction. Prismatic slip was the dominant deformation mode for samples with small tilt angle (θ = 0° and 22.5°). Basal slip was activated when the tilt angle was increased, which also resulted in the decrease of yield strength. Tensile twinning was responsible for the yielding of the samples with high tilt angles (θ = 67.5° and 90°). The ductility was significantly reduced at high tilt angle, which was mainly attributed to the appearance of tensile twinning during tensile deformation.


Associate Professor, Yuzhou Du School of Materials Science and Engineering Xi’an University of Technology No. 5, Jinhua South Road Xi’an, 710048 P. R. China Tel.: +86 29 82312516

Funding statement: This study was supported by China Postdoctoral Science Foundation funded project (No. 2019M653703 and 2020T130523).

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Received: 2020-12-21
Accepted: 2021-07-08
Published Online: 2021-10-15

© 2021 Walter de Gruyter GmbH, Berlin/Boston, Germany