Enhanced ductility and strength of Mg-1Zn-1Sn-0.3Y-0.2Ca alloy achieved by novel micro-texture design

Texture weakening is generally adopted as one of the prominent methods to improve the ductility of Mg alloys. In this work, we designed and fabricated the Mg-1Zn-1Sn-0.3Y-0.2Ca (wt. % ZTWX1100) alloy with a novel basal-random heterogeneous (BRH) texture by precisely controlled high-reduction rolling...

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Bibliographic Details
Published inScripta materialia Vol. 204; p. 114119
Main Authors Wang, Cheng, Ning, Hong, Liu, Shi, You, Jiang, Wang, Tong, Jia, Hong-Jie, Zha, Min, Wang, Hui-Yuan
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.11.2021
Subjects
Magnesium alloys
Mechanical properties
Micro-texture
Slip activity
Mechanical properties
Micro-texture
Slip activity
Magnesium alloys
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Summary:Texture weakening is generally adopted as one of the prominent methods to improve the ductility of Mg alloys. In this work, we designed and fabricated the Mg-1Zn-1Sn-0.3Y-0.2Ca (wt. % ZTWX1100) alloy with a novel basal-random heterogeneous (BRH) texture by precisely controlled high-reduction rolling, which contained both basal- and random-oriented grains with a uniform distribution. Compared with the basal-texture sample, the BRH texture improved the ductility and tensile strength simultaneously, due to the operation of non-basal slips within basal-oriented grains and the strong work hardening ability contributed by the basal-random grain boundaries. Besides, the basal-random grain boundaries in BRH texture were beneficial to improve the deformation compatibility by transforming the dominant carrier of local stress from original random-oriented grains to basal-oriented ones. This work aims to provide new insight into improving the mechanical properties of Mg alloys by texture coordinated deformation. [Display omitted]
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2021.114119