L-PBF GRX-810 Temperature Impact and Defect Content on Very High Cycle Fatigue Stud

The NASA Marshall Space Flight Center (MSFC) requires laboratory-based experimental tasks to evaluate the effect of defects on GRX-810 specimens in the very high cycle fatigue (VHCF) regime. The University of Toledo (UToledo) has unique capabilities that distinguish it from other institutions, including fatigue testing capability, material characterization facilities, and subject matter experts familiar with NASA technical requirements. The task involves evaluating L-PBF GRX-810 with defects in VHCF regime, machining and performing mechanical testing of samples, and completing post-test fractographic characterization and analysis. • The vendor shall receive and inspect samples, track and prepare them for machining, and complete all machining and mechanical testing within 20 weeks. • The vendor shall have experience testing materials using ultrasonic fatigue (USF) testing at room and elevated temperatures up to 1000°C. • The vendor shall complete USF testing at room and elevated temperatures on 30 specimens and provide updates on fatigue testing and characterization of specimens. • The vendor shall provide a final report in the form of a journal article and summary slides, as well as digital data and raw data including hysteresis curves.