Deformation Micro-mechanism of AZ31 Mg Alloy During Tension at Room Temperature by EBSD In-situ Tracking
SONG Guang-sheng1, CHEN Qiang-qiang1, XU Yong2, LI Juan2, ZHANG Shi-hong2
1. College of Materials Science and Engineering, Shenyang Aerospace University, Shenyang 110036, China;
2. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
Abstract：In-situ tracking on grain orientation evolution of AZ31 Mg alloy rolled sheet during tension along rolling direction at room temperature was conducted by the electron backscatter diffraction technique, and activations of slip systems and twinning during former deformation were analyzed. Analysis results show that, former deformation is accomplished mainly by 〈a〉 basal and prismatic slip activations, and there are not obvious changes for grain orientation, numerous 〈a〉 dislocation slip activations obviously increase the percentage of low angle grain boundaries. For extension twins within grain, they are activated in the process of specimen tension, but not in the process of unloading after tension.
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2016, Vol. 44 
