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Thermal Fatigue Testing of Simulated Turbine Blades
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1971 by SAE International in United States
Annotation ability available
Simulated turbine blades were subjected to transient and steady-state heating and spanwise loading in a Mach 1 burner rig. Leading-edge cracks were produced which were similar to thermal-fatigue cracks observed during engine service. Crack initiation and propagation data were obtained for a variety of test conditions.
The simulated turbine blades consisted of coated and uncoated IN 100 and B 1900 cambered airfoils with grips for application of spanwise load to simulate centrifugal stress. Test variables were blade temperature, spanwise load, and steady-state (hold) time. The Mach 1 gas velocity substantially reduced conventional creep rupture life. This caused a substantial reduction in thermal fatigue life. Coating effectiveness was below that for low velocity tests.
CitationSpera, D., Calfo, F., and Bizon, P., "Thermal Fatigue Testing of Simulated Turbine Blades," SAE Technical Paper 710459, 1971, https://doi.org/10.4271/710459.
- Springsteen D. F. Gyorgak C. A. Johnston J. R. “Origin and Development of Leading-Edge Cracks in Turbojet Engine Buckets.” NACA RM E57C12 1957
- Johnston J. R. Weeton J. W. Signorelli R. A. “Engine Operating Conditions that Cause Thermal-Fatigue Cracks in Turbojet-Engine Buckets.” NASA Memo 4-7-59E 1959
- Spera D. A. “Thermal Fatigue of High-Temperature Materials.” NASA SP-227 1970 43 57
- Manson S. S. Spera D. A. “Discussion of ‘Low-Cycle Fatigue Damage of Udimet 700 at 1400 F,’ by C. H. Wells and C. P. Sullivan.” Trans. ASM 58 4 December 1965 749 752
- Manson S. S. “Interfaces Between Fatigue, Creep, and Fracture.” Int. J. Fracture Mech. 2 1 March 1966 327 363
- Manson S. S. Halford G. R. “A Method of Estimating High-Temperature Low-Cycle Fatigue Behavior of Materials.” Thermal and High-Strain Fatigue London The Metals and Metallurgy Trust 1967 154 170
- Spera D. A. “A Linear Creep Damage Theory for Thermal Fatigue of Materials.” University of Wisconsin 1968
- Spera D. A. “The Calculation of Elevated-Temperature Cyclic Life Considering Low-Cycle Fatigue and Creep.” NASA TN D-5317 1969
- Spera D. A. Howes M. A. H. Bixon P. T. “Thermal-Fatigue Resistance of 15 High-Temperature Alloys Determined by the Fluidized-Bed Technique.” NASA TM X-52975 1971
- Spera D. A. “Calculation of Thermal-Fatigue Life Based on Accumulated Creep Damage.” NASA TN D-5489 1969
- Johnston J. R. Ashbrook R. L. “Oxidation and Thermal Fatigue Cracking of Nickel- and Cobalt-Base Alloys in a High Velocity Gas Stream.” NASA TN D-5376 1969
- Danforth C. E. “Designing to Avoid Fatigue in Long Life Engines.” SAE Transactions 75 1967
- Sorokin V. G. Bogachev I. N. Veksler Yu. G. Lesnikov V.P. Filippov M. A. “Short-Term Creep of Nickel in a High-Speed Air Flow.” 3 1970 2 5
- Bogachev I. N. Veksler Yu. G. Sorokin V. G. “Short-Term Creep of Metals and Alloys Under Conditions of Aerodynamic Heating.” Izvest, V. U. Z. Chernaya Met. 4 1970 142 147
- “High Temperature, High Strength, Nickel Base Alloys.” The International Nickel Company, Inc. 1964
- “A Technical Report on a New Cast Nickel Base Superalloy PWA 663 (B-1900).” Pratt & Whitney Aircraft Report PWA-2617 1965