Influence of water vapor on the chlorine-induced high-temperature corrosion behavior of nickel aluminide coatings
Source abstract
Abstract
Abstract Nickel aluminide coatings were prepared by aluminizing pure nickel at 700 ℃ for 6 h. The corrosion behavior of nickel aluminide coatings was investigated under a KCl deposit environment (95 %N2 +5%O2) alone or with 15 % or 30 % water vapor at 700℃. Without water vapor, the coatings suffered slight surface and intergranular corrosion attack. With water vapor increasing to 30 %, the generation of chlorine is inhabited and reduces the “chlorine-active corrosion”. However, with 30 % water vapor, the oxidation-decomposition reaction becomes more active, so more corrosion products accumulate on the surface and the degradation of coatings was more severe.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · Intermetallics and Advanced Alloy Properties · Catalytic Processes in Materials Science
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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