| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
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| Presentation Title |
Effect of Strain Rate on Slip Activation in a Mg-Al alloy by In-situ 3DXRD |
| Author(s) |
Gaoming Zhu, Anatoly Shabalin, Ulrich Lienert, Leyun Wang |
| On-Site Speaker (Planned) |
Gaoming Zhu |
| Abstract Scope |
Strain rate sensitivity (SRS) plays a significant role on the plastic deformation of metals. In general, different slip systems exhibit their own SRS during deformation, especially for low-symmetry HCP alloys. However, the effect of SRS on slip systems still remains elusive and requires detailed consideration. Based on three-dimensional X-ray diffraction (3DXRD) method, three in-situ tensile experiments were carried out on a Mg-3 wt.%Al alloy at beamline P21.2 at PETRA III, DESY, with various strain rates of 1×10-2, 1×10-3, and 1×10-4. By self-developed scripts, grain rotation, stress evolution, and diffraction spot broadening of hundreds of grains for each sample can be tracked up to 4% strain. In this presentation, we will introduce: (i) how to obtain critical resolved shear stress (CRSS) values of different slip systems by diffraction spot broadening and grain rotation; (ii) how SRS affects the CRSS and work hardening behavior of different slip systems. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Magnesium, Characterization, Mechanical Properties |