Abstract
Possibilities for studying the structural condition of the material, from which the operating blades of the axial compressor of a gas-turbine engine are made, are considered based on measuring ultrasound attenuation and speed. The results of measuring the propagation of pulses of longitudinal and elastic shear waves in the blade material after their operation and repair. The experimental studies are performed using an ultrasonic echo method. The potential of the nondestructive acoustic method of evaluating the structural state of corrosion resistant stainless steel after use, restorative repairs, and repeated use of the blades in the General Electric MS 5142 gas turbine engine of a GTK-25I gas compressor is presented.
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