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Industrial Gas TurbinesIGT components face extreme temperature-, hot gas corrosion and particle erosion stress.

While turbine section blades and combustion chambers are mainly coated with sophisticated thermal spray coatings (MCrAlY, oxides), the compressor stage blades are increasingly coated with thick PVD coatings: Thick TiAlN monolayer or Ti/TiN multilayer coatings are preferably used for turbine compressor stage blades due to their outstanding particle erosion resistance.

Advantages: Advanced  PVD coatings of compressor blades show longer lifetime compared to conventional slurry coatings.