Effect of Extrusion Strain Path on Microstructure and Properties of AZ31 Magnesium Alloy Sheet
来源期刊：Acta Metallurgica Sinica2015年第10期
论文作者：Qing-Shan Yang Bin Jiang Zu-Jian Yu Qing-Wei Dai Su-Qin Luo
文章页码：1257 - 1263
摘 要：The mechanical properties of AZ31 magnesium alloy sheets processed by different extrusion strain paths were examined in correlation with concurrent microstructure and texture evolution. The conventional extrusion（CE） and asymmetric extrusion（ASE） paths were performed on Mg alloy sheets. The textures at near surface and mid-layer of ASE sheets were various throughout sheet thickness direction as a result of extra asymmetric shear strain. This can stimulate the orientation of（0002） basal planes to incline approximately 12° toward the shear direction. Moreover, the basal texture of ASE sheet was weakened compared with CE one. Enhancing the ambient formability of extruded Mg alloy sheet fabricated by ASE path was accomplished by the tilted weak basal texture.
Qing-Shan Yang1,2，Bin Jiang2，Zu-Jian Yu1，Qing-Wei Dai1，Su-Qin Luo2
1. School of Metallurgy and Material Engineering, Chongqing University of Science and Technology2. Chongqing Academy of Science and Technology
摘 要：The mechanical properties of AZ31 magnesium alloy sheets processed by different extrusion strain paths were examined in correlation with concurrent microstructure and texture evolution. The conventional extrusion（CE） and asymmetric extrusion（ASE） paths were performed on Mg alloy sheets. The textures at near surface and mid-layer of ASE sheets were various throughout sheet thickness direction as a result of extra asymmetric shear strain. This can stimulate the orientation of（0002） basal planes to incline approximately 12° toward the shear direction. Moreover, the basal texture of ASE sheet was weakened compared with CE one. Enhancing the ambient formability of extruded Mg alloy sheet fabricated by ASE path was accomplished by the tilted weak basal texture.
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