PROBLEM TO BE SOLVED: To provide a turbine blade wear monitoring device and a turbine blade wear monitoring method that are capable of correctly monitoring the wear status of an initial-stage stator vane of a turbine comprising at least one wing.;SOLUTION: A turbine blade wear monitoring device 3 to monitor wear of an initial-stage stator vane 10 of a turbine 1 comprising at least one wing comprises a wear monitoring part 5 to monitor wear starting from a substantially central part in a wing longitudinal direction of a rear edge part of a wing 100 of the initial-stage stator vane 10 caused by a fluid flowing into the turbine 1.;SELECTED DRAWING: Figure 6;COPYRIGHT: (C)2018,JPO&INPIT
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