About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
Presentation Title |
Deformation Mechanisms of Dual-Textured Mg-6.5Zn Alloy with Low Tension-Compression Asymmetry: Experiments and Simulations |
Author(s) |
Biaobiao Yang, Eugenia Nieto-Valeiras, Meijuan Zhang, Javier LLorca |
On-Site Speaker (Planned) |
Javier LLorca |
Abstract Scope |
The deformation mechanisms of a dual-textured Mg-6.5Zn alloy were analyzed by means of tension and compression mechanical tests along the extrusion direction and crystal plasticity finite element simulations of a three-dimensional representative volume element (RVE) of the microstructure. Approximately 80% of the grains in the alloy presented the standard texture of wrought Mg alloys while the grain orientation was rotated by ≈ 90º perpendicularly to the c axis in the remaining 20%. The alloy's mechanical tests in tension and compression showed low tension-compression asymmetry. The underlying deformation mechanisms (basal, prismatic, and pyramidal slip as well as tension and compression twinning and re-slip within the twins) during both tension and compression were studied using both EBSD-based methodology and crystal plasticity finite element simulations of a dual-textured RVE. Finally, the numerical simulations were used to design novel microstructures with dual-texture with improved mechanical properties. |
Proceedings Inclusion? |
Planned: |
Keywords |
Magnesium, Characterization, Other |