| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Innovative Powder/Wire Processing of Multifunctional Materials
|
| Presentation Title |
Electron Beam Powder Bed Fusion of Binary Ni-Ti Shape Memory Alloys – On the Impact of TiC on the Functional Properties |
| Author(s) |
Philipp Krooss, Christian Lauhoff, Tobias Gustmann, Julia Kristin Hufenbach, Thomas Niendorf |
| On-Site Speaker (Planned) |
Philipp Krooss |
| Abstract Scope |
Ni-Ti shape memory alloys (SMA) still gain a lot of attention as promising candidates for actuation and damping applications. Since well-established thermomechanical processing routes widened potential applications, innovative 4D printing studies using powder bed based additive manufacturing processes are limited. However, the possibility to process near-net shaped actuators and dampers still motivates recent research dealing with additive manufacturing processes. Especially the characterization of microstructural and functional properties in correlation with process parameters are in focus. The present study focuses on electron beam powder bed fusion of a Ni-Ti SMA and the impact of an increased carbon content, which originates from the powder material that has been processed via vacuum induction melting gas atomization (VIGA). Chemical and microstructural analysis were conducted to address the impact of the chemical composition on the functional properties. The results reveal a high reversibility as well as excellent cyclic stability of the superelastic material properties. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Phase Transformations, |