| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Cold Spray Additive Manufacturing: Part Quality and Performance
|
| Presentation Title |
Enhancing Strength and Ductility of CS Deposits through Ad-mixed Feedstocks |
| Author(s) |
Ahmad Nourian, Sinan Muftu |
| On-Site Speaker (Planned) |
Ahmad Nourian |
| Abstract Scope |
Achieving a strong inter-metallic bond in the cold spray process relies on powder particle deformability and impact velocities. For pure metal powders, achieving sufficiently high impact velocities relative to critical velocity can be achieved using reasonable process parameters. However, for alloyed metal powders, particularly when N2 is used as the process gas, providing high velocity ratio is very challenging due to limitations in gas pressure and temperature. Therefore, N2-sprayed deposits from alloyed powders exhibit low tensile strength, making them unsuitable for structural applications. This research focuses on utilizing admixed feedstocks, comprising elemental powder blends, for cold spray deposition. Post-spray heat treatment promotes diffusion of alloy constituents into the matrix, enhancing the strength and ductility of the deposits. Deposits using aluminum and copper alloys are prepared, and their microstructural and mechanical properties are thoroughly evaluated and compared with pre-alloyed CS deposits and wrought materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Other |