About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
The Role of Through-thickness Variation of Texture and Grain Size on Bending Ductility of Al-Mg-Si Profiles |
Author(s) |
Philip Goik, Andreas Schiffl, Heinz Werner Höppel, Mathias Göken |
On-Site Speaker (Planned) |
Philip Goik |
Abstract Scope |
Ductility and strength are often opposed properties in dislocation slip deforming materials, such as Al-Mg-Si wrought alloys. However, for safety parts in the mobility sector, high strengths and excellent ductility are required. While the strength of those alloys is governed by the precipitation state and density, the deformation behavior and ductility are affected by both precipitates and crystallographic texture. The deformation during extrusion leads to the formation of characteristic textures in the bulk, which are distinct to the plane strain deformation, and a peripheral coarse grain (PCG) layers beneath the surface. This PCG layer can have a detrimental effect on the bending ductility, which assesses the crashworthiness. However, an appropriate texture in the bulk can counteract the detrimental effect of PCG and increases the bending ductility at high strengths. Subsequently, based on EBSD investigations of bending deformed microstructures, a way to enhance bending deformation capability in Al-Mg-Si profiles is proposed. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Shaping and Forming, Mechanical Properties, Aluminum |