TURBINE BLADE WITH A COVER PLATE AND A PROTECTIVE LAYER APPLIED TO THE COVER PLATE

摘要

The invention relates to a turbine blade (16) with a cover plate (20) shaped onto the pan (18) of the blade. The aim of the invention is to provide a turbine blade of this type that, while having a high level of efficiency, is designed for a particularly reliable and safe operation in a turbine, particularly of a steam turbine (2). To this end, the invention provides that a protective layer made of an alternative material is applied to the surface of the cover plate (20) facing away from the pan (18) of the blade. The friction behavior with regard to a turbine component, particularly a sealing strip (30), which is opposite the protective layer (28), can be specifically influenced whereby enabling favorable emergency running properties to be provided in the event of rubbing.