Steam oxidation resistance of Ni-aluminide/Fe-aluminide duplex coatings formed on creep resistant ferritic steels by low temperature pack cementation process
Source abstract
Abstract
Abstract Steam oxidation resistance and thermal stability were studied at 650 °C for a coating with an outer Ni 2 Al 3 layer and an inner Fe 2 Al 5 layer formed on P92 steel surface. The parabolic rate law of oxidation was obeyed only in less than 2000 h with positive deviations occurring at longer oxidation times. The outer layer of the coating was transformed to NiAl during oxidation, but it remained stable once it was formed. The mechanisms for the enhanced thermal stability were discussed and a simple approach to enhancing the lifetime of the coating was proposed.
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Research context
OpenAlex topics: High-Temperature Coating Behaviors · High Temperature Alloys and Creep · Nuclear Materials and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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