Wear-resistant coating and a component having a wear-resistant coating

A component, in particular a gas turbine component, having a wear-resistant coating, especially an erosion-resistant coating which is applied to a surface of the component that is exposed to fluidic loads and is to be protected, the wear-resistant coating being made of one or more multilayer systems applied repeatedly to the surface, wherein each of the multilayer systems has at least four different layers;

• wherein a first layer facing the surface in each multilayer system consists of a metallic material adapted to a composition of the component surface;
• wherein a second layer of each multilayer system applied to the first layer consists of a metal alloy material adapted to the composition of the component surface;
• wherein a third layer applied to the second layer of each multilayer system is made of a gradated metal-ceramic material;
• and wherein a fourth layer applied to the third layer of each multilayer system consists of a nanostructured ceramic material.

A wear-resistant coating for a surface of a component that is exposed to fluid loads, comprising:

• a first layer made of a metallic material adapted to a composition of the component surface to be coated;
• a second layer applied to the first layer made of a metal alloy material that is adapted to the composition of the component surface;
• a third layer applied to the second layer made of a gradated metal-ceramic material;
• and
• a fourth layer applied to the third layer made of a nanostructured ceramic material.

A component that is exposed to fluid loads, comprising:

• a wear-resistant coating applied to a surface of the component, wherein the coating includes:
• a first layer made of a metallic material adapted to a composition of the surface of the component;
• a second layer applied to the first layer made of a metal alloy material that is adapted to the composition of the surface of the component;
• a third layer applied to the second layer made of a gradated metal-ceramic material;
• and
• a fourth layer applied to the third layer made of a nanostructured ceramic material.

A method of forming a wear-resistant coating for a surface of a component that is exposed to fluid loads, comprising the steps of:

• forming a first layer made of a metallic material adapted to a composition of the component surface to be coated;
• applying a second layer to the first layer made of a metal alloy material that is adapted to the composition of the component surface;
• applying a third layer to the second layer made of a gradated metal-ceramic material;
• and
• applying a fourth layer to the third layer made of a nanostructured ceramic material.

A method of protecting a surface of a component that is exposed to fluid loads, comprising the steps of:

• applying a first layer made of a metallic material adapted to a composition of the surface of the component to the surface of the component;
• applying a second layer to the first layer made of a metal alloy material that is adapted to the composition of the surface of the component;
• applying a third layer to the second layer made of a gradated metal-ceramic material;
• and
• applying a fourth layer to the third layer made of a nanostructured ceramic material.