Controlled Composition Reaction Sintering Process for Production of MCrAlY Coatings.

Abstract : The feasibility of the fluidized bed-controlled composition reaction sintering process for depositing sulfidation resistant and ductile CoNiCrA1Y coatings on simple blade shapes of nickel-based superalloys has been demonstrated. Critical process parameters of all steps in the process have been identified. Methods were developed for adjusting the coating composition to emphasize either the chemical or mechanical properties of these coatings. (Author)