TURBINE BLADE, AND GAS TURBINE INCLUDING SAME

摘要

The present invention relates to a turbine blade (10). The turbine blade (10) of the present invention comprises a wing main body (11) which is attached to a rotor main body (2) in such a manner as to extend from the rotor main body (2) toward a radial direction outer side of the rotor main body (2), and a tip shroud (20) which is fixed to the radial direction outer side of the wing main body (11). A cooling passage (14) is disposed in the wing main body (11) in such a manner as to extend in a radial direction of the rotor main body (2) so that a coolant is circulated. The tip shroud (20) comprises a shroud main body (30) where a recess (60) which is open toward the radial direction outer side and communicates with the cooling passage (14) is disposed at an outer circumferential end surface, and a plug (70) which comprises a plurality of plug pieces (71, 72), each of which is inserted into an attachment groove (61a) disposed at a side surface of the recess (60) to collaboratively block the opening of the recess (60).