A simultaneous improvement of both strength and ductility by Sn addition in as-extruded Mg-6Al-4Zn alloy
Xiao-Yuan Wanga,b, Yu-Fei Wanga,b, Cheng Wanga,b,c,*(), Shun Xua,b, Jian Ronga,b, Zhi-Zheng Yanga,b, Jin-Guo Wanga,b,*(), Hui-Yuan Wanga,b,c

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Fig. 3.. Optical micrographs (inset: corresponding grain size distribution, dave represents the average grain size) of as-extruded AZ64-xSn alloys: (a) AZ64; (b) AZT641; (c) AZT642; (d) AZT643. (ED and TD stand for extrusion direction and transverse direction, respectively).