Corrosion behaviour of Ni and nickel aluminide coatings exposed in a biomass fired power plant for two years

• Published in: Surface & coatings technology Vol. 362; pp. 355 - 365
• Main Authors: Wu, D.L., Dahl, K.V., Christiansen, T.L., Montgomery, M., Hald, J.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 25.03.2019; Elsevier BV
• Subjects: Biomass combustion; Boiler tubes; Corrosion; Exposure; Fireside corrosion; Grain boundaries; Histograms; Intermetallic compounds; Ni coating; Ni2Al3 coating; Nickel aluminides; Nickel coatings; Organic chemistry; Power plant testing; Precipitates; Protective coatings; Ni coating; Fireside corrosion; Power plant testing; Biomass combustion; Ni2Al3 coating

Ni and Ni2Al3 coatings were applied to superheater tubes that were built into a wood-fired boiler with an outlet steam temperature of 520 °C. The present paper evaluates the performance of the coatings after two years of service. The corrosion performance of the coatings is discussed with respect to...