| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thermodynamics and Kinetics of Alloys III
|
| Presentation Title |
Understanding Aging Behavior in 6xxx Alloys using Advanced Characterization Techniques |
| Author(s) |
XiaoXiang Yu, Dieter Isheim, Jeffrey Tschirhart, Matthew Heyen, John E. Carsley |
| On-Site Speaker (Planned) |
XiaoXiang Yu |
| Abstract Scope |
Aluminum alloys can undergo three types of aging following quenching from a solid solution: natural aging at room temperature, artificial aging at elevated temperatures, such as in the paint-bake process of a formed component, and pre-aging at slightly elevated temperature during manufacturing. Despite extensive research on these aging processes, there remains a lack of complete understanding regarding the structures and compositions of early-stage clusters and their formation dependencies. This gap in knowledge hinders the rational design of aluminum alloys with enhanced properties.
This study employs a quantitative analysis of solute atom clustering, nano dispersoids, and precipitates in aluminum alloys experiencing various aging processes by utilizing a combination of atom probe tomography (APT) and transmission electron microscopy (TEM). Our combined findings illuminate the structural and compositional evolution of local features during aging. Furthermore, we discuss the development of methodologies to optimize cluster contrast for precise quantitative analysis from APT data. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Aluminum, Characterization, |