TWO-LAYER MCRA1X COATING HAVING DIFFERENT CONTENTS OF COBALT AND NICKEL

摘要

In order to improve both oxidation stability and thermo-mechanical stability, a two-layer MCrAlX coating is provided, wherein the contents of nickel and cobalt, but also chromium, aluminum, and zirconium, differ significantly. Each layer of the two layer coating may be the same thickness or the inner layer is thicker than the outer layer.