About this Abstract |
| Meeting |
2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
|
| Symposium
|
2026 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2026)
|
| Presentation Title |
Nanoscale Deformation and Creep Response of LPBF Processed GRX-810 via Instrumented Nanoindentation |
| Author(s) |
Omar Banda, Kurtis Watanabe, Francisco Medina, Patricio Sebastian Rodriguez Beltran, Israt Zahan Mim, Sohail Mohammed |
| On-Site Speaker (Planned) |
Omar Banda |
| Abstract Scope |
GRX-810 is a NASA nickel-based superalloy designed for extreme-temperature aerospace and hypersonic applications. However, the localized mechanical response at the nanoscale remains poorly understood, particularly under additively manufactured conditions. In this study, room-temperature nanoindentation was employed to investigate the nanoscale mechanical behavior of laser powder bed fusion (LPBF) GRX-810 fabricated under varying process parameters and build orientations. Testing was conducted using a NanoTest Vantage system equipped with a Berkovich indenter to evaluate hardness, elastic modulus, elastic-plastic deformation response, and creep behavior. Specimens were sectioned along multiple planes to assess the build-direction-dependent microstructural anisotropy on localized deformation mechanisms. Load-displacement curves were analyzed using the Oliver-Pharr methodology to quantify mechanical properties and correlate indentation response with LPBF-induced microstructural heterogeneity. The results will provide nanoscale mechanical property datasets for additively manufactured GRX-810 and establish critical insight into orientation-dependent deformation and creep behavior, supporting future qualification and deployment of GRX-810 for aerospace applications. |
| Proceedings Inclusion? |
Undecided |