About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
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| Symposium
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Microstructure-Sensitive Design and Advanced Characterization: An MPMD/SMD Symposium Honoring David T. Fullwood
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| Presentation Title |
Integrated processing–microstructure–property modeling of LPBF pure copper and GRCop-42 for rotating detonation engine applications |
| Author(s) |
Seong Eun Yang, Pooja Maurya, Natasha Vermaak, S. Mohadeseh Taheri-Mousavi |
| On-Site Speaker (Planned) |
Seong Eun Yang |
| Abstract Scope |
Copper alloys for rotating detonation engine components require high thermal conductivity, elevated-temperature strength, sufficient ductility, and resistance to high-frequency thermomechanical loading. This study develops an integrated experimental and computational framework for laser powder bed fusion of pure copper and GRCop-42. Small-coupon builds establish feasible processing windows and quantify the effects of laser parameters and scan strategies on porosity, cracking, grain morphology, and build-direction anisotropy. These results guide processing studies of GRCop-42 and evaluation of how Cr₂Nb precipitation and solidification structure influence mechanical behavior. CALPHAD calculations are coupled with Orowan strengthening and Hall–Petch models to quantify the contributions of Cr₂Nb precipitates and grain size to yield strength and elevated-temperature stability. Electrical-resistivity and effective-medium models estimate thermal conductivity, while thermal expansion is evaluated for thermomechanical simulations. The framework identifies processing–microstructure–property relationships, defines microstructural targets, and clarifies mechanical–thermal-property trade-offs under rotating detonation engine conditions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Copper / Nickel / Cobalt, Additive Manufacturing, ICME |