|About this Abstract
||2023 TMS Annual Meeting & Exhibition
||Late News Poster Session
||E-32: Combining In-situ Diffraction, In-situ Acoustic Emission and High-resolution Digital Image Correlation to Study Tension-compression Asymmetry in the WZ21 Alloy
||Gerardo Garces, Pablo Pérez, Edurne Laurin, Judit Medina, Andreas Stark, Norbert Schell, Alberto Orozco, Kristian Mathis, Paloma Adeva
|On-Site Speaker (Planned)
The combination of in-situ synchrotron radiation diffraction, in-situ Acoustic Emission and high-resolution digital image correlation has been used to study the deformation behavior under tension and compression of an extruded Mg-2%Y-1%Zn(wt.%) alloy. The microstructure of extruded Mg-Y-Zn alloy is composed of areas with DRXed grains and areas consisting of very coarse non-DRXed grains which are highly oriented with their basal plane parallel to the extrusion direction. The volume fraction of DRXed and non-DRXed areas are 80% and 20%, respectively. This microstructure induces the typical tension-compression asymmetry of extruded magnesium alloys. Results conclude that DRxed grains deform by the activation of the basal slip system independently of the stress mode, tension or compression. Non-DRXed grains behaves as reinforcement under tensile tests bearing an additional load transferred by soft grains. At high stresses non-basal slip systems are also activated. Under compression, however, non-DRXed grains deformed easily by the activation of tensile twinning.
||Magnesium, Mechanical Properties, Characterization