About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Additive manufacturing of martensitic Ti-Nb |
| Author(s) |
Alessandro Angelo Valdameri, Lars Vanmunster, Pushkar Prakash Dhekne, Emile Verhoestraete, Armin Habibiyan, Mahbod Golrang, Bey Vrancken, Kim Vanmeensel, Matthias Bönisch |
| On-Site Speaker (Planned) |
Matthias Bönisch |
| Abstract Scope |
Martensitic Ti-Nb alloys exhibit shape memory effect and tailorable thermal expansion. While conventional fabrication routes for these materials are well-established, it is widely unknown if and how they can be processed by additive manufacturing.
This work therefore explores the fabrication of Ti-Nb by laser beam powder bed fusion (PBF-LB). Using pre-alloyed atomized powder, cuboid samples were printed for a broad range of build settings, varying laser shape, laser speed, and laser power. The resulting microstructures reveal that proper PBF-LB settings can lead to high volume fractions (>90%) of orthorhombic martensite. High-energy X-ray diffraction scans along the build height suggest only mild microstructural variations. Texture analysis shows that the martensite unit cells preferentially align with the build direction, leading to direction-dependent behaviour.
These findings suggest that proper selection of alloy content and PBF-LB parameters can yield martensitic Ti-Nb parts for functional 3D-printed components.
Funding: KU Leuven Internal Funds (grant STG/23/008) |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Characterization |