Gas turbine engine component with protective coating
AssigneeROLLS-ROYCE plc
InventorsGrant J. GIBSON, Matthew HANCOCK, Lloyd PALLETT
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Abstract
A gas turbine engine component made of a nickel-based superalloy, the gas turbine engine component comprising a protective coating. The protective coating includes an inner diffusion barrier layer including any one or any combination of elements selected from the group consisting of platinum, palladium, tantalum, tungsten, hafnium and iridium, and an outer layer of hard material formed of hard particles embedded in a matrix.
Claims16
A gas turbine engine component made of a nickel-based superalloy, the gas turbine engine component comprising a protective coating including:
- an inner diffusion barrier layer including any one or any combination of elements selected from the group consisting of platinum, palladium, tantalum, tungsten, hafnium and iridium, and
- an outer layer of hard material formed of hard particles embedded in a matrix.
A gas turbine engine component made of a nickel-based superalloy, the gas turbine engine component comprising a protective coating including:
- an inner diffusion barrier layer excluding nickel, but including any one or any combination of elements selected from the group consisting of platinum, palladium, tantalum, tungsten, hafnium and iridium, and
- an outer layer of hard material formed of hard particles embedded in a matrix.
A gas turbine engine component made of a nickel-based superalloy, the gas turbine engine component comprising a protective coating including:
- an inner diffusion barrier layer consisting of any one or any combination of elements selected from the group consisting of platinum, palladium, tantalum, tungsten, hafnium and iridium, and
- an outer layer of hard material formed of hard particles embedded in a matrix.
Dependencies are inferred from the claim text.