| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
An Atoms to Autos Approach for Materials Innovations for Lightweighting: An LMD Symposium in Honor of Anil K. Sachdev
|
| Presentation Title |
Solute Clustering Mechanisms in 6xxx Sheet Products |
| Author(s) |
Monica Kapoor, David Tweddle, Gregory B Thompson, John E Carsley |
| On-Site Speaker (Planned) |
Monica Kapoor |
| Abstract Scope |
The early stage of atomic clustering is critical in deciding the transformation pathways to strengthening phases and thereby strengthening kinetics, which in turn controls 6xxx automotive sheet formability performance. Clustering can be quantified using atom probe tomography (APT) which requires arduous sample preparation using electropolishing and/or FIB-based methods. In light metals, some of these sample preparation methods have the potential to modify the very clustering behavior which is under investigation. Thus, this study first investigates various sample preparation methods and quantifies clustering, which is sensitive to vacancy concentration, to identify the best sample preparation method for APT of light metals. In the second part of this study, APT is used to characterize and quantify clusters at various points along the process route of the alloy – pre-aged, artificially aged, post-solution-treatment, and corresponding states after artificial aging – and linked to mechanical properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Characterization, Other |