About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Materials Deposition by Cold Spray and Related Technologies III
|
| Presentation Title |
Single Particle Impact: From Processing Science of Cold Spray to Micromechanics of Impact-Induced Bonded Interfaces |
| Author(s) |
Qi Tang, Mostafa Hassani |
| On-Site Speaker (Planned) |
Mostafa Hassani |
| Abstract Scope |
Laser-induced microprojectile impact testing (LIPIT) has enabled in-situ measurements of critical bonding velocity and has played a pivotal role in advancing our understanding of impact-induced bonding mechanisms. While much of the past decade’s research using LIPIT has focused on identifying the critical bonding conditions, our recent work represents a shift in emphasis in this area—from the processing science of cold spray toward the micromechanical properties that emerge at impact-bonded interfaces. In this talk, we present an overview of our recent studies that integrate in-situ single microparticle impact experiments with subsequent in-situ micromechanical measurements of interfacial strength inside a scanning electron microscope. We present the spatial variation of bond strength from the impact center to the periphery and discuss the underlying mechanisms. Furthermore, we examine how key processing parameters such as impact velocity and particle size influence interfacial strength at the micrometer scale and reveal the mechanisms governing these effects. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Mechanical Properties, Modeling and Simulation |