Power Generation 2018-04-22T23:30:37+00:00


Common modes of wear in power generation addressed with our coatings

  • Abrasion-Wear caused from two parts rubbing against each other.
  • Erosion-Wear due to impact for gas, liquid, solid particle or combination.
  • Adhesion – Occurs when solid surfaces slide over each other under pressure. Also known as galling.
  • Corrosion-Breakdown due to chemical reaction with environment.
  • Oxidation-Reaction between metal and oxygen at elevated temperature


Our coatings are used to extend the life of your parts by properly addressing and resisting wear

Common Applications

  • MCrAlY Oxidation and Corrosion Protection Coatings
    • MCrAlY (pronounced ‘emcrawlee’) coatings are used to provide hot corrosion and oxidation protection. MCrAlY coatings are a combination of metal ‘M’ (usually nickel, cobalt, or combination) with chrome ‘Cr’, aluminum ‘Al’ and yttrium ‘Y’ (stabilizer).  MCrAlY coatings form a protective oxide scale on the surface to protect the base metal of the component.  MCrAlY Coatings also often serve as a bond layer for thermal barrier coatings, TBC.
  • Thermal Barrier Coatings (TBC)
    • TBC (thermal barrier coatings) are porous ceramic coatings that serve as temperature barrier or insulation to reduce the surface temperature of metal. TBC is primarily made up of zirconia oxide and is usually around 10 to 15 mils thick.  The temperature reduction from the TBC is dependent on part geometry and cooling air but can be estimated to be around 100-150 degrees F.
  • Clearance Control Coatings
    • Clearance control coating are coating used to reduce operating clearances between the rotating and stationary components for the turbine. They are often designed to be sacrificial or abradable.  The coating is designed to abrade or wear if contact is made during operation without causing major damage to the component.
  • Hard Face Coatings
    • Hard face coatings provide wear resistance from fretting, abrasion and erosion. For IGT components,  chrome carbide and Stellite type materials are the most common hard face coatings used.  Typical IGT applications are at mating faces of combustion components.

Coating Applied

  • Compressor
    • Corrosion protecting aluminum based coatings
    • Abradable clearance control coatings
    • Fit and dimensional restoration coatings
  • Combustion Hardware
    • MCrAlY/TBC for oxidation resistance and substrate temperature reduction
    • Hard facing-Stellite or Chrome carbide to combat fretting
  • Stationary Vanes/Rotating Blades
    • MCrAlY/TBC for oxidation resistance and substrate temperature reduction
    • Fit and dimensional restoration coatings
  • Shroud Blocks
    • Clearance control abradable coating to reduce operating gap between rotating blade and stationary component
    • Hard facing – Chrome Carbide to protect against rubs
  • Steam Turbines
    • Bearing Journal restoration
      • Chrome Carbide
    • Mechanical seal dimensional restoration
      • Chrome Carbide
      • Inconel
    • Erosion protection
      • Chrome Carbide
      • Tungsten Carbide

“Trinity Coatings provides quality in all aspects to meet our coating requirements. Their attention to detail in all phases is second to none. Coatings you can count on at competitive cost and lead times”

Turbine Services Ltd

“Believe me if there is anything Trinity in general can do for us, it will be sent there. Always happy with everything from you guys.”

ETS Power Group

“Trinity Coatings has exceeded our expectations and significantly increased quality while improving our deliveries. We could not have picked a better partner.”

Trinity Turbine Technology, LP

The importance of coatings on power generation industrial parts.

Thermal spray coatings have significantly advanced industrial gas turbines by allowing manufactures to increase firing temperatures and efficiencies. Thermal spray coatings also play a major factor in extending maintenance intervals and increasing the life of your components. These coatings extend the life of your parts by combating oxidation and hot corrosion to protect the underlying base material.

Let Trinity Coatings protect your IGT components to avoid downtime and save your budget.