|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Characterization of Minerals, Metals and Materials
||Correlative Microscopy Studies of <c+a> Dislocations in a Hot-roll AZ31 Mg Alloy
||Dexin Zhao, Xiaolong Ma, Kelvin Xie
|On-Site Speaker (Planned)
In this work, we developed a correlative microscopy technique, employing both EBSD and TEM to characterize the <c+a> dislocations in a highly textured hot-rolled AZ31 Mg alloy. EBSD was firstly used to map the grains in the electron transparent region to reveal the crystal orientation with respect to the loading direction. TEM was then applied to study the dislocations in the EBSD examined grains. We observed that <c+a> dislocations were activated in most of the grains even for those with the grain orientations unfavorable for <c+a> dislocations. This observation suggests that the overall texture may strongly influence individual grain’s deformation mode and the roles of the exact orientation of individual grains is less relevant.