| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Materials Deposition by Cold Spray and Related Technologies
|
| Presentation Title |
Enhancement of properties in nitrogen-based cold-sprayed Niobium deposits |
| Author(s) |
Solomen Teye Azu, Rajashekara Sarvesha, James R Caudill , Adolfo Blassino, Isaac Nault , Ibrahim S. Jawahir |
| On-Site Speaker (Planned) |
Rajashekara Sarvesha |
| Abstract Scope |
Cold spray using nitrogen as a carrier gas for structural applications has been challenging due to the high propensity for resultant porosity in the as-deposited state, especially in high-strength refractory metals like Nb. Even though helium as a carrier gas results in lower porosity, the scarcity of helium has motivated a continuous effort toward obtaining enhanced properties in nitrogen-sprayed deposits. This study evaluates the viability of a hybrid manufacturing process through severe plastic deformation (SPD) and cold spray to achieve properties comparable to that of helium-based cold spray deposition. Detailed analyses of the mechanical and microstructure characteristics at multiple length scales were conducted to assess the effects of SPD on the deposit. Additionally, the impact of residual stresses generated during the SPD process on deposit characteristics was examined. The multi-scale mechanical properties of the hybrid SPD nitrogen-sprayed deposits were then compared to those of helium-sprayed deposits. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, |