About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Phase Transformations and Microstructural Evolution
|
Presentation Title |
Influence of Alloy Composition on the Precipitate Evolution and Properties of 7xxx Aluminum Alloy during Magnetic Field Annealing |
Author(s) |
Damilola Alewi, Kirk Lemmen, Cle' Sanchez, Haluk Karaca, Paul Rottmann |
On-Site Speaker (Planned) |
Damilola Alewi |
Abstract Scope |
Processing of ultra-high strength 7xxx aluminum alloys relies on the formation of nanoscale strengthening η and η’ precipitate phases during the T6 temper. These strengthening phases contains Zn and Mg which are the main solute atom in these alloys. Previous studies have shown that magnetic field annealing can enhance precipitation kinetics in 7075 alloys, but the specific mechanisms underlying this phenomenon and the influence of alloy chemistry on its susceptibility to magnetic field annealing are not yet well understood. In this study, a 7075 and 7085 aluminum alloy are being investigated. These two alloys containing different Zn/Mg ratio is being subjected to magnetic field (0-3 T) annealing at time steps below peak ageing to investigate their susceptibility to magnetic field and precipitation dynamics. The precipitate evolution was studied with the aid of small angle x-ray scattering technique (SAXS) and transmission electron microscopy (TEM). |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Characterization, Other |