About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Materials Deposition by Cold Spray and Related Technologies III
|
| Presentation Title |
The Influence of Heat Treatment on the Strength of Single Microparticle Impact-Induced Bonded Interfaces |
| Author(s) |
Qi Tang, Mostafa Hassani |
| On-Site Speaker (Planned) |
Qi Tang |
| Abstract Scope |
The high pressure and extreme interfacial deformation induced by supersonic impact of metallic microparticles onto metallic substrates can result in solid-state bonding at the contact interface, a key mechanism in solid-state additive manufacturing techniques such as cold spray. This process typically produces a brittle interface, characterized by a high-strength periphery and a defective, low-strength center. In this work, we investigate how post-impact heat treatment alters the interfacial properties at the impact center. We produce bonded metallic particles with similar particle diameters and impact velocities. We systematically vary the heat treatment temperature and measure the resulting interfacial strength at the impact center through in-situ micromechanical testing. Our results reveal a variation of interfacial strength with increasing heat treatment temperature, accompanied by a transition in fracture mechanisms. Finally, we discuss our micromechanical measurements along with the change of interface status and surrounding material microstructure under different heat treatment temperatures. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Other |