Oerlikon Balzers, Balzers, Liechtenstein, a leading provider of surface solutions, introduced its new Balora portfolio of coatings for applications in high-temperature environments such as in the aerospace and power generation markets. The first coating, Balora PVD MCrAlY, represents the next generation of high-density MCrAlY coatings, which use Oerlikon Balzers’ proven PVD Arc surface and equipment technologies to form an outstanding barrier against oxidation and hot corrosion inside the hot section of turbines.
Efficiency improvements in gas turbines are often achieved by increasing the operating temperatures to 1200 °C and above. Coatings used in turbine hot sections must withstand these extreme conditions to prevent hot corrosion and component oxidation. Typically, MCrAlY coatings for these applications are produced using thermal spraying and other technologies.
Oerlikon Balzers applied its proven high-end PVD Arc technology to make these standard MCrAlY coating production processes more efficient. It improved the coating properties by giving them aerodynamically smooth surfaces and outstanding substrate adhesion.
It produces extremely dense coatings which form an oxidation barrier. The coating design process takes into account individual application requirements and the base material. High-performance targets are developed from the powder material provided by Oerlikon Metco and used to deposit an ultra-dense coating on the components in Oerlikon Balzers’ high-end arc evaporation coating systems.
Balora PVD MCrAlY from Oerlikon Balzers allows higher service temperatures and forms an excellent oxidation barrier, providing added value to customers by improving system efficiency, extending turbine blade service life, reducing maintenance and increasing service intervals.
For more information:
Oerlikon Balzers
https://www.oerlikon.com/balzers/balora
