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Enhanced ductility and reduced asymmetry of Mg-2Al-1Zn alloy plate processed by torsion and annealing

Wang, Jun, Yang, Xu-Yue, Li, Yi, Xiao, Zhen-Yu, Zhang, Du-Xiu and Sakai, Taku 2015, Enhanced ductility and reduced asymmetry of Mg-2Al-1Zn alloy plate processed by torsion and annealing, Transactions of nonferrous metals society of China, vol. 25, no. 12, pp. 3928-3935, doi: 10.1016/S1003-6326(15)64040-7.

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Title Enhanced ductility and reduced asymmetry of Mg-2Al-1Zn alloy plate processed by torsion and annealing
Author(s) Wang, Jun
Yang, Xu-Yue
Li, Yi
Xiao, Zhen-Yu
Zhang, Du-Xiu
Sakai, Taku
Journal name Transactions of nonferrous metals society of China
Volume number 25
Issue number 12
Start page 3928
End page 3935
Total pages 8
Publisher Elsevier
Place of publication Amsterdam, The Netherlands
Publication date 2015-12
ISSN 1003-6326
Keyword(s) Science & Technology
Technology
Metallurgy & Metallurgical Engineering
Magnesium alloy
Microstructure
Torsion
Asymmetry
Texture
Twinning
AZ31 MAGNESIUM ALLOY
COMPRESSION YIELD ASYMMETRY
SIMPLE SHEAR
STATIC RECRYSTALLIZATION
DEFORMATION-BEHAVIOR
TEXTURE EVOLUTION
TENSILE DUCTILITY
ROOM-TEMPERATURE
MG ALLOY
SHEET
Summary The ductility and plastic asymmetry of an as-annealed magnesium alloy plate were studied in compression through combined process of torsion and subsequent annealing by optical microscope and EBSD. The yield strength (YS) and ultimate compression strength (UCS) as well as the compression ductility (CD) were simultaneously raised by prior torsion at room temperature. The CD was further enhanced by subsequent annealing. Also, the torqued sample followed by annealing experienced a rising CD with the increase in prior strain, leading to the maximum true strain of 0.279, which is twice that of the as-annealed original one. The sample showed a largely reduced tension-compression yield asymmetry by subjecting to pre-torsion alone or combined with a subsequent annealing. The enhanced ductility and reduced asymmetry are attributed to the development of a gradient microstructure with refined grains, and also randomization of the weakened texture due to torsion and subsequent annealing.
Language eng
DOI 10.1016/S1003-6326(15)64040-7
Field of Research 091499 Resources Engineering and Extractive Metallurgy not elsewhere classified
0914 Resources Engineering And Extractive Metallurgy
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Elsevier
Persistent URL http://hdl.handle.net/10536/DRO/DU:30082125

Document type: Journal Article
Collection: Institute for Frontier Materials
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