Surface treatments for turbine components to reduce particle...

C - Chemistry – Metallurgy – 23 – C

Patent

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C23C 14/06 (2006.01) C23C 14/30 (2006.01) C23C 14/35 (2006.01)

Patent

CA 2680495

A turbine engine component (10) includes at least one treated surface (14) wherein the treated surface has a surface roughness (Ra) of less than 12 microinches; and a hard coating (16) disposed on the treated surface, wherein the hard coating (16) is a nitride and/or a carbide material at a thickness of less than 50 microns formed using electron beam physical vapor deposition, cathodic arc evaporation, or magnetron sputtering. Also disclosed are methods for substantially preventing micropitting on a surface of a turbine engine component (10).

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