About this Abstract |
Meeting |
12th International Conference on Magnesium Alloys and their Applications (Mg2021)
|
Symposium
|
12th International Conference on Magnesium Alloys and their Applications (Mg 2021)
|
Presentation Title |
Elevated Temperature Formability of Texture-weakened Magnesium-sheet Alloys: Strain-rate Sensitivity Effects |
Author(s) |
David Klaumunzer, Marc Imiela |
On-Site Speaker (Planned) |
David Klaumunzer |
Abstract Scope |
Recent work in the development of novel magnesium sheet alloys has been focussed extensively on improving the room-temperature stretch formability. In most alloy systems, such improvement is attributed to a texture-weakening effect by the addition of zinc in combination with either rare-earth elements or calcium. While such an improvement is significant compared to standard alloys showing a strong basal texture, such as AZ31, the formability enhancement is still insufficient to form real components, e.g. for the automotive industry, at room temperature. Additionally, some of the recently developed alloys show a retarded enhancement of formability at elevated temperatures making them inherently difficult to form into complex geometries. We can show that this can be attributed to a strain-rate sensitivity effect which attains low values at intermediate temperatures. Based on these findings, alloy design guidelines can be established that help to improve formability also in an industrially relevant context. |
Proceedings Inclusion? |
Planned: At-meeting proceedings |