Cavitation Resistant

Pump Impeller - Plasma sprayed Alumina Titania to protect against cavitation

This is the term used to describe the phenomenon of liquid to gas, and gas to liquid phase changes that occur when the local fluid dynamic pressure in areas of accelerated flow drop below the vapor pressure of the local fluid. The gas to liquid phase change is akin to the boiling of water, except that it occurs at ambient temperatures.

Coated Industrial gas turbine nozzle guide vanes

Typical Applications

Cavitation often occurs in hydro-electric turbines and is often a major consideration within the Marine industry.

• Turbines

• Guide Vanes

• Wicket gates

• Turbine runner

• Draft tube

• Pumps

• Impellers

• Propellers

Typical Processes

• HVOF

• Plasma

Typical Materials

• Tribaloy T-800

• WC - 17 Co

• Cr3C2 - 25NiCr

• Cr2O3

• Alumina/Titania