One specific deterioration mode that occurs within the engine hot section is partially/molten debris accumulation on high pressure turbine airfoils. The accumulation causes not only performance degradation, but also has the potential to increase engine op line, thereby reducing overall engine stall margin and safety factors. In order to mitigate the effects of debris accumulation, airfoil treatments and coatings are conceptually an option for operational use.
The Phase II initiative will assess the potential effectiveness of multiple airfoil surface treatments and protective coatings against the initial and continued accumulation of partially molten debris onto the 1st Stage nozzle of a T700-GE-401C engine utilizing the Turbine Reacting Flow Rig II deposition facility at Ohio State University.
Those interested in participating in this initiative should contact Debbie Lilu, within 90 days of this project announcement. We encourage participation of Disadvantaged Business Enterprises (DBEs), including Minority Business Enterprises (MBEs) and Women’s Business Enterprises (WBEs).