Engine

Engine turbine blades operate at high rotational speeds and must withstand extreme temperatures. Coatings are also used to enhance anti-fretting, anti-galling and wear resistance. Thermal processing typically includes stress relieving (after hard face welding), solution and age.

Turbine nozzle vanes are used to direct hot, expanding gases to the rotating turbine blades. Coatings are used to protect the base material and produce the expected service life. Thermal processing typically includes stress relieving, annealing, solution and age, and brazing of vane inserts and plenum covers. Honeycomb seals are primarily used to prevent gas leakage between different stages of the turbine section. The seal usually fits in close tolerance to a shroud ring (constructed of honeycomb material) mounted to the outer turbine case. Vacuum brazing is used to join the seal to the ring, with Nickel alloy usually the braze alloy of choice.

Process solutions for this component include:

• Thermally Sprayed Coatings
• Heat Treatment
• Metal Joining
• HIP Densification
• HIP Product Fabrication