About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Materials Deposition by Cold Spray and Related Technologies IV
|
| Presentation Title |
Orientation-Dependent Thermomechanical Behavior of Cold Spray Additively Manufactured GRCop-42 for Rotating Detonation Engine Applications |
| Author(s) |
Michael William Ross, Daniel Mumm, Lorenzo Valdevit |
| On-Site Speaker (Planned) |
Michael William Ross |
| Abstract Scope |
GRCop-42 is a high-conductivity, dispersion-strengthened copper alloy developed for liquid-rocket engines, where Cr2Nb Laves-phase dispersoids provide thermal stability under extreme heat flux. Emerging applications such as rotating detonation engines (RDEs) impose directionally-biased thermomechanical loading distinct from conventional rocket environments, motivating a need to understand how deposition-induced anisotropy in additively manufactured GRCop-42 translates into directional thermomechanical performance. This work characterizes cold spray additively manufactured GRCop-42 deposited in air to assess microstructural anisotropy inherent to the process. As-received powder is characterized for particle size distribution and interstitial oxygen content via inert gas fusion to establish a baseline for oxygen pickup through processing. Thermomechanical properties are evaluated from deposits sectioned at 0°, 45°, and 90° relative to the spray direction to quantify orientation-dependent behavior. Microstructural features–splat boundaries, porosity, and dispersoid retention–are correlated with performance. Results are discussed for RDE inner body wall applications, complementing ongoing powder-engineering efforts toward tailoring processing for detonation environments. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Other, Mechanical Properties |