About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
2026 Technical Division Student Poster Contest
|
| Presentation Title |
SPG-45: Length-Scale-Dependent Hardness in Cold-Sprayed Metals |
| Author(s) |
Audrey Johnson, Kyle Tsaknopoulos, Danielle Cote |
| On-Site Speaker (Planned) |
Audrey Johnson |
| Abstract Scope |
Cold spray deposits exhibit an inhomogeneous microstructure due to severe plastic deformation of powder particles and localized bonding between layers and the substrate material. As a result, measuring the indentation hardness of these deposits can be unreliable across varying length scales because the probability of sampling individual microstructural regions depends on both indentation size and location. This project investigates how powder particle deformation influences hardness behavior across nano, micro, and macro-length scales for multiple alloy systems. Methods will include hardness testing at each length scale using nanoindentation and microhardness testing, as well as imaging analysis to explore predictive methods for further study. Understanding these scale-dependent variations will support more reliable prediction of hardness measurements in cold spray deposits. |
| Proceedings Inclusion? |
Undecided |
| Keywords |
Additive Manufacturing, Characterization, Mechanical Properties |