| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys: Development and Manufacturing
|
| Presentation Title |
The Effects of V and Zr Additions on the Chemical and Mechanical Properties of Al-Zn-Mg Alloys |
| Author(s) |
Nawon Kwak, Jaehui Bang, Hyunchuel Lee, Eunkyung Lee |
| On-Site Speaker (Planned) |
Nawon Kwak |
| Abstract Scope |
7XXX series Al-Zn-Mg alloys are used in the automotive and aerospace industries due to their excellent mechanical properties, formability, and high strength-to-weight ratio. However, they exhibit low fatigue strength compared to tensile strength and poor corrosion resistance due to grain boundary precipitates (GBP). Therefore, mechanical properties can be improved by adding small amounts of alloying elements such as V and Zr, which can stabilise the grain structure and inhibit recrystallisation. Currently, there is a lack of research on the combined addition of V and Zr to Al-Zn-Mg alloys compared to the single addition of V and Zr. In addition, there is a need for research on the fatigue behavior of Al-Zn-Mg alloys used under cyclic stresses. In this study, the microstructure changes were observed by single and composite additions of V and Zr to 7XXX-based alloys, and the corrosion resistance and fatigue properties of the alloys were investigated. |
| Proceedings Inclusion? |
Planned: Light Metals |