Superalloy Surface Treatment for Improved Performance of Power Turbines

  • Magazine Article
  • TBMG-28330
Published February 01, 2018 by Tech Briefs Media Group in United States
  • English

To produce power more efficiently and cleanly, the next generation of power turbines will have to operate at extreme temperatures and pressures. Currently, single-crystal, nickel-based superalloys are used in such extreme environments. MCrAlY coatings (where M = Co, Ni, or Co/Ni) are widely applied to first- and second-stage turbine blades and nozzle guide vanes, where they may be used as corrosion-resistant overlays or as bond coats for use with thermal barrier coatings.