Layered coating system with a MCrAlX layer and a chromium rich layer and a method to produce it

摘要

A layer system and a method for producing a component having such a layer system are provided. The layer system includes a substrate a substrate, at least one MCrX layer on the substrate, and a chromium-rich layer on or in the at least one MCrX layer. X includes at least one element selected from the group consisting of yttrium (Y), silicon (Si), aluminum (Al) and boron (B). M includes at least one element selected from the group consisting of nickel (Ni) and cobalt (Co).

主权项

1. A layer system, comprising:
a substrate, a first layer comprising two MCrX inner layers on the substrate, wherein said two MCrX inner layers comprise a second inner layer, the second inner layer being an MCrX″ layer, wherein X″ consists of Si and B, a second layer comprising a chromized layer on the first layer, and a third layer comprising an aluminized MCrX layer on the second layer, wherein X is selected from the group consisting of yttrium (Y), silicon (Si), boron (B), and combinations thereof, and wherein M is an element selected from the group consisting of nickel (Ni), cobalt (Co), and a combination thereof.