| 摘要 |
The invention relates to a rotor component (4) for a rotor assembly of a fluid energy machine, particularly of a gas turbine, a steam turbine, a compressor or the like, wherein the rotor component (4) is at least partly made of a material susceptible to corrosion and/or oxidation and can be arranged concentrically to a rotation axis of the rotor assembly, wherein the rotor component (4) comprises a circular surface (5) for checking concentricity of the rotor component (4) with respect to the rotation axis, characterized in that the rotor component (4) comprises at least one additional circular surface (6) for checking concentricity of the rotor component (4) with respect to the rotation axis, wherein the additional circular surface (6) is coated with a corrosion and/or oxidation protection coating (7). |
