| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a turbine blade having superior reliability of a corrosion shield plate junction, and to provide a turbine rotor using the same and a steam turbine. <P>SOLUTION: A turbine blade is characterized by fixing an erosion shield plate comprising a Co-base alloy to a front edge of a distal end of a turbine long blade comprising an iron-base alloy via a shim comprising an Ni-Fe alloy through one path of electron beam welding. In the case of fixture through electron beam welding, preferably, projections thicker than the turbine blade and a shield part are provided in a welding groove part and the shim having the thickness almost equal to the projections is used. <P>COPYRIGHT: (C)2013,JPO&INPIT |
