TURBINE BLADE OR VANE OF A GAS TURBINE AND PROCESS FOR COATING A TURBINE BLADE OR VANE OF A GAS TURBINE

摘要

The invention relates to a turbine blade or vane of a gas turbine, having a main blade or vane part (11), a blade or vane root (12) and a platform (13) positioned between the main blade or vane part and the blade or vane root, wherein the turbine blade or vane is provided with an anti-corrosion coating at least in certain regions, in particular on a bottom side (14) of the platform and/or in the transition region (15) between the bottom side of the platform and the blade or vane root. According to the invention, the anti-corrosion coating is a diffusion coating having a chromium content in the surface region of more than 30% by weight.