| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
The Effect of Crystallographic Texture Gradients on the Mechanical Response of Aluminum Automotive Extrusions |
| Author(s) |
Warren J. Poole, Andrew Zang, Yu Wang, Mary Wells, Nick Parson, Mei Li |
| On-Site Speaker (Planned) |
Warren J. Poole |
| Abstract Scope |
There is current interest is expanding the use of aluminum extrusions in automotive applications. A challenge for the use of aluminum extrusions is the gradients of mechanical properties found within extrusions which result from inhomogeneous deformation during extrusion. In this work, the effect of local variations of crystallographic texture has been characterized experimentally using electron back scatter diffraction (EBSD) maps. In particular, through thickness effects have been examined for AA3xxx extrusion alloys and the role of texture variations has been considered for idealized extrusions using a porthole die. This work has focused on alloys which are primarily unrecrystallized after extrusion. The deformation textures have been predicted using the velocity fields extracted from finite element method calculations as an input for crystal plasticity simulations using the visco-plastic self-consistent method. It is found that texture predictions and the resulting mechanical anisotropy can be modelled well for situations where the strain path is relatively simple, for example near the centre of the extrudate but it is more challenging to predict properties near the surface where the shear strains due to friction can be greater than a true strain of 10. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |