Oerlikon Balzers, a provider of surface solutions, has introduced its new Balora portfolio of coatings which offers revolutionary properties for applications in high-temperature environments, such as in the aerospace and power generation markets. The first coating from the new portfolio, 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 a 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, otherwise, a system failure would occur – resulting in considerable replacement costs. Typically, MCrAlY coatings for these applications are produced using thermal spraying and other technologies. Oerlikon Balzers has applied its high-end PVD Arc technology to make these standard MCrAlY coating production processes more efficient and improve the coating properties by giving them aerodynamically smooth surfaces and outstanding substrate adhesion.
Balora PVD MCrAlY from Oerlikon Balzers allows higher service temperatures and forms an oxidation barrier, thus providing significant added value by improving system efficiency, extending turbine blade service life, reducing maintenance, and increasing service intervals.
For more information: Oerlikon Balzers
