| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Magnesium Technology 2020
|
| Presentation Title |
Recrystallization Effects on the Forming Behaviour of Magnesium Alloy Sheets with Varied Calcium Concentration |
| Author(s) |
Jan Bohlen, Huu Chanh Trinh, Klaus Rätzke, Sangbong Yi, Dietmar Letzig |
| On-Site Speaker (Planned) |
Jan Bohlen |
| Abstract Scope |
The formation of strong textures with a preferential alignment of the basal planes in the sheet plane were an important disadvantage for the formability of magnesium alloy sheets. Rare earth or calcium alloying concepts allow significant texture changes during rolling, resulting in weaker textures and thus improved formability. Such a texture development has also been associated with retarded recrystallization. However, this retardation affects the formability during sheet forming operations at elevated temperature.
The wrought alloy AZ31 and its Ca-modified counterpart AZX310 are used for Nakajima forming tests at different temperatures and deformation rates. The influence of recrystallization on the sheet formability is demonstrated along different strain paths including local microstructure analysis. The weaker texture due to the addition of Ca allows maintaining the improved formability, which is counteracted by retarded recrystallization. A balance of both effects is discussed. |
| Proceedings Inclusion? |
Planned: |