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The present work is devoted to the estimation of the coating lifetime by modeling aluminum diffusion in a slurry‐applied coating on P92 at 650 °C employing the computational and experimental approach. This coating protects ferritic steels from both steam and fireside corrosion on new coal‐fired power plants operating under super‐supercritical steam parameters. The computer model of the diffusion...
Slurry aluminide coatings were elaborated on IN‐800HT and pure Ni. After spray of the slurry, the annealing treatment was performed in Ar(g) at 400 °C for 3 h, then by 650 °C for up to 5 h. This brought about major Al diffusion into the substrate following parabolic kinetics. After 5 h at 650 °C, stabilization of the B2–(Fe,Ni)Al and β‐NiAl coatings in, respectively, the IN‐800HT and pure Ni substrates...
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