Effect of bending and tension deformation on the texture evolution and stretch formability of Mg–Zn–RE–Zr alloy

Yuya Ishiguro; Xinsheng Huang; Yuhki Tsukada; Toshiyuki Koyama; Yasumasa Chino

doi:10.1007/s12613-021-2398-8

Volume 29 Issue 7

Jul. 2022

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Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2022 > 29(7): 1334-1342

Yuya Ishiguro, Xinsheng Huang, Yuhki Tsukada, Toshiyuki Koyama, and Yasumasa Chino, Effect of bending and tension deformation on the texture evolution and stretch formability of Mg–Zn–RE–Zr alloy, Int. J. Miner. Metall. Mater., 29(2022), No. 7, pp. 1334-1342. https://doi.org/10.1007/s12613-021-2398-8

Cite this article as:

Yuya Ishiguro, Xinsheng Huang, Yuhki Tsukada, Toshiyuki Koyama, and Yasumasa Chino, Effect of bending and tension deformation on the texture evolution and stretch formability of Mg–Zn–RE–Zr alloy, Int. J. Miner. Metall. Mater., 29(2022), No. 7, pp. 1334-1342. https://doi.org/10.1007/s12613-021-2398-8

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Research Article

Effect of bending and tension deformation on the texture evolution and stretch formability of Mg–Zn–RE–Zr alloy

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Corresponding author:
Yuya Ishiguro E-mail: ishiguro.yuya@e.nagoya-u.jp
Received: 17 October 2021; Revised: 19 December 2021; Accepted: 21 December 2021; Available online: 25 December 2021

Abstract

Abstract

Bending and tension deformations were performed on Mg–1.3wt%Zn–0.2wt%RE–0.3wt%Zr (ZEK100) alloy sheets that initially had a transverse direction (TD)-split texture. The effects of bending and tension deformations on the texture formation and room-temperature formability of specimens were investigated. The specimen subjected to 3-pass bending and tension deformations exhibited an excellent Erichsen value of 9.6 mm. However, the Erichsen value deterioration was observed in the specimen subjected to 7-pass deformations. The rolling direction-split texture developed on the surface with an increasing pass number of deformations. Conversely, the clear TD-split texture remained at the central part. As a result, a quadrupole texture was macroscopically developed with an increasing pass number of deformations. The reduction in anisotropy by the formation of the quadrupole texture is suggested to be the main reason for the improvement in stretch formability. By contrast, the generation of coarse grains near the surface is suggested to be the direct cause for the deterioration of the stretch formability of the specimen subjected to 7-pass deformations.
- magnesium alloy;
- texture;
- stretch formability;
- bending and tension deformation;
- mechanical properties

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