| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Joining Niobium Refractory Alloy with Titanium Alloy in Direct Energy Deposition Additive Manufacturing Process |
| Author(s) |
Olexandr Grydin, Yevgen Karakash, Olena Karpovych, Sven Gründer, Mirko Schaper, Florian Hengsbach |
| On-Site Speaker (Planned) |
Olexandr Grydin |
| Abstract Scope |
High-strength Nb alloys are known for their high-temperature stability, making them ideal for aerospace applications. However, due to their high density, Nb alloys are only practical in high-temperature areas. To reduce the weight of rocket components, Nb alloys can be combined with Ti alloys. Titanium and niobium do not form intermetallic phases during thermal fusion, which enables their joining in laser-based additive manufacturing processes. This study explores the deposition of AMtrinsic® Nb-Ta-W-Zr alloy powder onto a 3D-printed Ti6Al4V alloy using direct energy deposition (DED) in a hybrid SKYPRINT 2 3D printer. Subsequently, Ti6Al4V was deposited on the printed Nb-based layers. The layered Ti-Nb-Ti samples were analyzed using scanning electron microscopy, and microhardness measurements were conducted to identify differences in material properties depending on the joining direction. Finally, measures to improve joining quality during 3D printing of multi-materials based on Ti and Nb are proposed. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Joining, High-Temperature Materials |