MATE (Materials for Advanced Turbine Engines) Program, Project 3. Volume 2: Design, fabrication and evaluation of an oxide dispersion strengthened sheet alloy combustor liner. Final report
The suitability of wrought oxide dispersion strengthened (ODS) superalloy sheet for gas turbine engine combustor applications was evaluated. Two yttria (Y2O3) dispersion strengthened alloys were evaluated; Incoloy MA956 and Haynes Development Alloy (HDA) 8077 (NiCrAl base). Preliminary tests showed both alloys to be potentially viable combustor materials, with neither alloy exhibiting a significant advantage over the other. MA956 was selected as the final alloy based on manufacturing reproducibility for evaluation as a burner liner. A hybrid PW2037 inner burner liner containing MA956 and Hastelloy X components and using a louvered configuration was designed and constructed. The louvered configuration was chosen because of field experience and compatibility with the bill of material PW2037 design. The simulated flight cycle for the ground based engine tests consisted of 4.5 min idle, 1.5 min takeoff and intermediate conditions in a PW2037 engine with average uncorrected combustor exit temperature of 1527 C. Post test evaluation consisting of visual observations and fluorescent penetrant inspections was conducted after 500 cycles of testing. No loss of integrity in the burner liner was shown.
- Research Organization:
- Pratt and Whitney Aircraft, East Hartford, CT (USA)
- OSTI ID:
- 6788771
- Report Number(s):
- N-90-17868; NASA-CR-180892; NAS-1.26:180892; PWA-5574-223-VOL-2
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
HASTELLOY X
THERMAL CYCLING
THERMAL FATIGUE
HAYNES ALLOYS
INCOLOY ALLOYS
COMBUSTION CHAMBERS
CREEP
DISPERSIONS
GAS TURBINE ENGINES
LINERS
OXIDATION
PROGRESS REPORT
YTTRIUM OXIDES
ALLOY-NI49CR22FE18MO9
ALLOYS
CHALCOGENIDES
CHEMICAL REACTIONS
CHROMIUM ALLOYS
COBALT ALLOYS
COBALT BASE ALLOYS
CORROSION RESISTANT ALLOYS
DOCUMENT TYPES
ENGINES
FATIGUE
HASTELLOYS
HEAT ENGINES
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
INTERNAL COMBUSTION ENGINES
IRON ALLOYS
MATERIALS
MECHANICAL PROPERTIES
MOLYBDENUM ALLOYS
NICKEL ALLOYS
NICKEL BASE ALLOYS
OXIDES
OXYGEN COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TUNGSTEN ADDITIONS
TUNGSTEN ALLOYS
YTTRIUM COMPOUNDS
360103* - Metals & Alloys- Mechanical Properties