|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Magnesium Technology 2018
||C-61: Deformation Mechanism of a Mg-Zn-Y Alloy Containing Large Long-period-stacking-ordered Structures under Shock Wave
||Fan Zhang, Chengwen Tan, Mingwei Chen
|On-Site Speaker (Planned)
The deformation behavior and corresponding microstructure evolution of a Mg97Zn1Y2 (at. %) alloy with a long period stacking ordered (LPSO) structure subjected to shock wave were investigated. The strength was significantly improved for the shock recovery materials, which is attributed to the deformation twinning and dislocation tangles induced by shock wave. Meanwhile, the kink bands, a normal deformation mechanism at quasi-static loading, were hindered for the Mg-Zn-Y alloy at shock loading. The reason for this is the activation of non-basal <a> and <a+c> dislocations due to the high pressure of the shock wave. These findings may provide insights into approaches for optimizing the mechanical properties of Mg alloys in dynamic loading applications.