| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
| Presentation Title |
3D In-situ Characterization of the Deformation of Open-cell Aluminum Foam Using High Energy X-ray Diffraction Microscopy and Micro-Computed Tomography |
| Author(s) |
Quinton C. Johnson, Kris Matheson, Jayden Plumb, Peter Kenesei, Hemant Sharma, Jun-Sang Park, Ashley Spear |
| On-Site Speaker (Planned) |
Quinton C. Johnson |
| Abstract Scope |
A novel method is proposed to integrate micro-computed tomography and far-field high energy x-ray diffraction data to study ultra-low-density, open-cell metal foams/lattices during deformation. As an example, a 5 mm-diameter sample of Al 6101-T6 foam was crushed in-situ at beamline 1-ID of the APS. Far-field and tomography data were collected, stitched, and integrated. Grains were artificially grown using the grain centroid and size information from far-field data. The result is a unique 3D grain map that allows the tracking of important mesoscale characteristics (e.g. crystal orientation and average grain strain) as deformation progresses. Additionally, precipitates were segmented from the tomography data, resulting in a 3D precipitate map that reveals the orientation and location of certain grain boundaries. Highlights include: observations of foam deformation based on extracted mesoscale features, the ability to track crystal orientation despite large and chaotic foam ligament deformation, and artificially grown grains informed by 3D precipitate maps. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |