Choose your country / language

BALORA PVD MCrAlY
BALORA PVD MCrAlY

In order to improve the efficiency level of gas turbines, the operating temperatures are often increased to 1,200 °C and above. The coatings used in the hot section must withstand these extreme conditions to prevent hot corrosion and component oxidation, otherwise a system failure would occur – resulting in considerable replacement costs.

Typically, MCrAlY coatings are produced using thermal spraying and other technologies. Oerlikon Balzers has applied its proven high-end PVD Arc technology to make the standard MCrAlY coating production process more efficient and significantly improve the coating properties.

BALORA PVD MCrAlY offers superior properties compared to conventionally produced MCrAlY coatings: it has excellent substrate adhesion, and it can be applied up to a thickness of 100 micrometres without porosity. Most importantly, the MCrAlY composition in combination with the high density can be tailored to form the perfect barrier against oxidation on turbine blades and vanes.

BALORA PVD MCrAlY
Coating material NiCrAlY (Ni, Ni/Co, Co)
Coating technology Arc
Coating colour grey
Coating hardness HIT [GPa]* 7 - 11
Max. service temp. [°C]**** 1200
Process temperature [°C] 400 - 500
Typical coating thickness [µm] 0.1 to > 100
General remark All given data are approximate values, they depend on application, environment and test condition.
*Coating hardness HIT [GPa] Measured by nano indentation according to ISO 14577. For multilayers the hardness of the different layers varies. Hardness can be adapted to the application.
****Max. service temp. [°C] These are approximate values out of the field. Due to thermodynamic laws there is a dependency of pressure in application.

Feedback or questions? Get in touch with us!

keyboard_arrow_up