Multilayered aluminiferous protective coating and component
AssigneeSiemens Energy Global GmbH & Co. KG
InventorsArturo Flores Renteria, Simone Friedle, Torsten Neddemeyer
Life of this patent
Estimating the term…
Abstract
The use of especially an aluminum alloy on a metal substrate in a PVD-AlTiN coating results in good corrosion and erosion protection.
Claims8
A protective coating system, which has a bottom aluminiferous or zirconiferous sub-layer on a substrate, wherein the sublayer is at least one of directly on and in the substrate, wherein the sub-layer comprises only aluminum or an aluminum-zirconium alloy or only zircon and includes an outer multilayered-cover layer consisting of alternating TiAlN and AlTiN layers, which has been applied by PVD.
A compressor blade component, comprising:
- a substrate;
- and
- a protective coating system, wherein the protective coating system comprises a bottom sub-layer wherein the bottom sub-layer is an aluminiferous or zirconiferous sub-layer, wherein the bottom sub-layer comprises only aluminum or an aluminum-zirconium alloy or only zircon, and wherein the protective coating system comprises an outer multilayered cover layer consisting of alternating TiAlN and AlTiN layers, which has been applied by PVD.
A method comprising:
- providing a substrate, wherein the substrate is a compressor blade;
- applying a sub-layer to the substrate, wherein the sub-layer is an aluminiferous or zirconiferous sub-layer and comprises only aluminum or an aluminum-zirconium alloy or only zircon;
- and
- applying an outer multilayered cover layer consisting of alternating TiAlN and AlTiN layers on top of the sub-layer, wherein the outer multilayered cover layer is applied by PVD.
Dependencies are inferred from the claim text.