| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Microstructural and micro-mechanical characterization of isothermally heat-treated Al6061 cold spray deposits |
| Author(s) |
Kyle P. Wade, Tyler J. Flanagan, Benjamin A. Bedard, Victor K. Champagne, Avinash M. Dongare, Seok-Woo Lee, Mark Aindow |
| On-Site Speaker (Planned) |
Kyle P. Wade |
| Abstract Scope |
Cold spray is an additive manufacturing technique that deposits solid powder particles with supersonic velocity. Powder particles experience extreme plastic deformation upon impact causing a metallurgical bond and unique microstructural changes. To understand mechanical behavior of cold spray deposits, it is critical to understand how cold spray processes influence microstructure and mechanical properties of powder particles, the basic building block of cold spray deposits. Here, we studied the effect of isothermal heat treatments on the mechanical properties and microstructures of cold sprayed Al6061 powders using nanoindentation, micropillar compression, and electron microscopy. Development of heterogeneous defect structures in deposited powder particles are discussed in terms of grain size and dislocation density. The effects of heat treatment were understood in terms of solute dissolution, recrystallization, and grain growth. Our results, measured at small-length scales, provide an important insight into the understanding of mechanical properties of bulk cold spray deposits. |
| Proceedings Inclusion? |
Planned: |