Ensuring life-cycle stages of steam turbine blades using ultrasonic testing
Life cycle analysis of steam turbine blades. Considered the use of ultrasonic testing throughout the life cycle of the blades, the analysis of defects in turbine developing from initial defects of the machining by milling. It is shown, that application of ultrasound monitoring throughout the life cycle of turbine blades to reduce the number of defects. The scheme of control of steam turbine blades with a t-tail with the use of a hard layer of immersion. The dependences of the amplitude of the signal from defect on standard and specially made samples using application of immersion rigid Prism. The proposed approach will reduce the likelihood of defects during the life cycle of blades