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Steam turbine rotor blade, steam turbine, and method for manufacturing steam turbine rotor blade
Steam turbine rotor blade, steam turbine, and method for manufacturing steam turbine rotor blade
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机译:蒸汽轮机转子叶片,汽轮机和制造汽轮机转子叶片的方法
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摘要
A steam turbine rotor blade includes a protrusion portion (7) which is provided on a tip end portion of a blade body (61), on which a leading edge portion (61a) is formed, in a blade height direction and protrudes from a suction-side surface (612) toward the leading edge portion (61a) side, and a transition-region seal member which is provided so as to cover at least a portion of a base end-side surface of the protrusion portion (7) and a leading edge-side transition region, which faces the leading edge portion (61a) side, of a connection portion between the protrusion portion (7) and the suction-side surface (612), the transition-region seal member being formed of a material having a hardness higher than that of the blade body (61).
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