|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Magnesium Technology 2017
||Microstructural and Numerical Investigation on the Shear Response of a Rare-earth Magnesium Alloy Sheet
||Michael J. Nemcko, Armin Abedini, Clifford Butcher, Peidong Wu, Michael J. Worswick
|On-Site Speaker (Planned)
||Michael J. Nemcko
Shear tests are performed on an anisotropic rare-earth magnesium alloy rolled sheet (ZEK100-O) to study the constitutive plastic behaviour of the material at room temperature, under quasi-static conditions. The shear response is characterized in three orientations by setting the shear loading direction at 45°, 90°, and 135° with respect to the rolling direction. Each orientation displays unique trends in terms of yielding and the work hardening rates. EBSD analysis is used to analyze the microstructure of the deformed samples and to determine the twinning modes and twin fraction in each specimen. The results suggest that these parameters have a significant impact on the constitutive behavior of the material. Furthermore, the viscoplastic self-consistent (VPSC) model is used to understand the activity of the various deformation mechanisms and validate the experimental observations.