About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated Through Novel In-Situ Experiments and Modeling
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Presentation Title |
NOW ON-DEMAND ONLY - Correlating the Microstructure of Friction-stir Processed Al 7085 to Mechanical Properties Using In-situ Micromechanical Testing |
Author(s) |
Tanvi Ajantiwalay, Christian Roach, Hrishikesh Das, Mert Efe, Piyush Upadhyay, Arun Devaraj |
On-Site Speaker (Planned) |
Tanvi Ajantiwalay |
Abstract Scope |
Local mechanical properties of industrially relevant lightweight Aluminum alloys such as 7085 can be significantly modified by using friction stir processing (FSP). FSP involves application of severe shear deformation, which leads to highly refined dynamically recrystallized grains, unique precipitation and shear deformation induced textures. In this study, the microstructural modification achieved by FSP of Al7085 alloy is revealed using systematic transmission electron microscopy and atom probe tomography studies. This detailed understanding of the microstructure is then correlated to the mechanical properties via in-situ nanoindentation and micro-pillar compression using PI89 Picoindenter inside a plasma focused ion beam (PFIB). The specimens fabricated using the PFIB eliminates gallium implantation in Al, which is inherent to Ga-based FIBs. This direct correlation of local mechanical properties to corresponding microstructures can enable “right property at the right place” approach in component design of lightweight alloys. |
Proceedings Inclusion? |
Planned: |
Keywords |
Composites, Mechanical Properties, Process Technology |