| 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 |
Metal Foils for Bipolar Plates – Correlation of Initial Grain Size and Forming Behavior of 316L |
| Author(s) |
Alexander Bauer, Thomas Mehner, Birgit Awiszus, Thomas Lampke |
| On-Site Speaker (Planned) |
Alexander Bauer |
| Abstract Scope |
As the forming of metallic bipolar plates is mostly still state of research, the underlying forming mechanisms are not fully understood. This study deals with the topic of different grain sizes in the initial metal sheets and their influence on the forming results. Therefore, a work hardened 316L-foil (0.1 mm) was processed with different heat-treatment strategies resulting in three different grain sizes with average grain diameters of 47.4 µm, 19.3 µm and 7.9 µm. Afterwards, all heat-treated blanks were cut and deep drawn between two rigid dies to form a bipolar plate flow field. Besides force and geometrical factors like thinning and springback, the microstructure was analyzed by XRD and EBSD. Using these characterization methods, the mechanisms of twinning and preferred deformation of specific grain orientations during the forming process can be identified. Therefore, the impact of size effects on the forming behavior of metallic bipolar plates was shown. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |