| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Integration between Modeling and Experiments for Crystalline Metals: From Atomistic to Macroscopic Scales IV
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| Presentation Title |
Integration of Experiments and Modeling in Polycrystalline Plasticity of Mg-Al Single Phase Alloys |
| Author(s) |
Moshen T Andani, A Lakshmanan, Y S Yoo, V Sundararaghavan, J E Allison, Amit Misra |
| On-Site Speaker (Planned) |
Moshen T Andani |
| Abstract Scope |
In dilute Mg-Al single phase alloys, high-resolution electron backscatter diffraction is used to measure barrier strength of specific grain boundaries to basal and prismatic slip systems. Site-specific transmission electron microscopy is used to elucidate the dislocation mechanisms at grain boundaries. The results are analyzed using dislocation pile-up model and used to calibrate grain size strengthening parameters in a crystal plasticity model. Integration of local experimental measurements of dislocation-interface interactions with computational modeling at corresponding length scales is shown to be effective in developing predictive crystal plasticity finite elements models of stress strain response for different textures and grain sizes. |