|About this Abstract
|2022 TMS Annual Meeting & Exhibition
|On the Mechanical Behaviors of Extruded AZ61A Magnesium Alloy Tube under Cyclic Torsion
|Xiaodan Zhang, Qin Yu, Huamiao Wang
|On-Site Speaker (Planned)
Load bearing structural components of magnesium alloys are sometimes subjected to cyclic shear. Therefore, understanding the mechanical behavior of magnesium alloys under cyclic shear is essential for the design, fabrication, and service of the end products. In this work, the cyclic torsion tests of extruded AZ61A Mg alloy tube are conducted. In parallel, the elastic viscoplastic self-consistent model with the twinning and detwinning scheme, in conjunction with a torsion specific finite element approach, is employed to model the cyclic torsion. The results reveal that the deformation mechanisms alter significantly with varying the different loading, leading to variances in Swift effect, the twin volume fraction and relative activities of deformation mechanisms.
|Magnesium, Modeling and Simulation, Mechanical Properties