| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Late News Poster Session
|
| Presentation Title |
Additive Manufacturing of Nitinol Parts via Optimised Laser-powder Bed Fusion |
| Author(s) |
Muhannad Ahmed Obeidi, Dermot Brabazon |
| On-Site Speaker (Planned) |
Muhannad Ahmed Obeidi |
| Abstract Scope |
Nitinol alloys are widely used in biomedical and aerospace. They exhibit unique properties as super-elastic or shape-memory-alloys (SMA) which depend on their chemical composition and the Ni-Ti ratio. It is known that this ratio depends on the initial chemical composition of the alloy, but also the level of the input thermal energy because the latter can highly affect the evaporation of nickel in the final part. Producing mechanical parts from this alloy is more controlled when using traditional manufacturing techniques compared to Additive Manufacturing (AM). This study is focused on comparing the chemical composition of NiTi parts produced by using the laser continuous mode (CM) versus pulse mode (PM). The same metal printer and the metal powder batch were used. The parts produced by PM showed stable chemical composition with significant mechanical parts. Tough and brittle compression performance accompanied by catastrophic fracture was noted on the PM manufactured parts |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Biomaterials, Characterization |