ANTI-EROSION COATING SYSTEM FOR GAS TURBINE COMPONENTS

摘要

The invention relates to a gas turbine component made of a basic material (1), on which an anti-erosion coating system is provided that comprises a multilayer system including at least one ductile metal layer and at least one hard, ceramics-containing layer for forming a partial anti-erosion system (3). At least one anti-corrosion layer (2) that has a lower electrochemical potential than the basic material is provided between the partial anti-erosion system (3) and the basic material (1), thus providing cathodic corrosion protection. The invention also relates to a method for producing a corresponding anti-erosion coating system, including the following steps: a) applying a cathodic anti-corrosion layer (2); b) applying a multilayer partial anti-erosion system (3) using physical vapor deposition (PVD).