| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Transformations and Microstructural Evolution
|
| Presentation Title |
Effect of Zirconium Addition to Wrought Al-Mg-Si Alloys on Microstructure |
| Author(s) |
Florian Schmid, Irmgard Weißensteiner, Matheus Tunes, Thomas Kremmer, Thomas Ebner, Peter J. Uggowitzer, Stefan Pogatscher |
| On-Site Speaker (Planned) |
Florian Schmid |
| Abstract Scope |
In a dynamic environment with ever changing parameters, materials need to be enhanced and adapted constantly. A high maximum strength is crucial for the application of aluminum alloys in demanding environments, like aerospace or heavy machinery, and to compete successfully against other metals. This study aims at spotlighting measures to increase the strength of AlMgSi alloys by changing the chemical composition as well as processing parameters. Besides age-hardenable elements (Si, Mg and Cu), the addition of Zr shows a high potential for its usage as dispersoid forming element. Upon suitable heat treatment parameters, Zr forms Al3Zr-precipitates, which are known to have a high potential for stabilizing the microstructure and act resistively against recrystallization. In order to evaluate the influence of the presented measures, microstructure evolution during thermo-mechanical treatment is examined by electron microscopy. Results are discussed in terms of mechanical parameters, recrystallization tendency and dispersoid density. |
| Proceedings Inclusion? |
Planned: |