High-Temperature Fatigue Testing of Turbine Blades

Kopec, Mateusz; Kukla, Dominik; Wyszkowski, Mirosław; Kowalewski, Zbigniew L.

doi:10.2478/fas-2023-0002

Abstract

This paper evaluates the efficacy of a patented grip for high-temperature fatigue testing by establishing the S-N curve for full-scale nickel-based turbine blades under simulated environmental conditions. Initially, a bending test assessed the stress-displacement characteristics of the component. This was followed by a series of fatigue tests at 950°C, using cyclic bending with force amplitudes from 5.2 kN to 6.6 kN and a constant frequency of 10 Hz. The setup, integrating the grip into a standard testing machine, proved effective for high-temperature tests and successfully determined the service life of full-scale components.

References

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High-Temperature Fatigue Testing of Turbine Blades

Abstract

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