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Figure 1.
General view of the experimental setup (a); a view of the turbine blade attached to the grip, positioned inside the heating coil (b); high-temperature fatigue testing of a turbine blade at 950°C (c); the fractured turbine blade after testing (d).
Figure 2.
Bending characteristic of the exemplary turbine blade at 950°C (a); S-N curve for turbine blades subjected to fatigue at 950°C (b); selected hysteresis loops obtained at forces of 5.8 kN (c) and 6.2 kN (d); temperature recordings during testing (e).
Figure 3.
Development of fatigue damage in turbine blades subjected to fatigue at 950°C with force amplitude of 5.2 kN.