metal dusting

Oxide ceramics handle heat, struggle with corrosion in reverse-flow pyrolysis petrochemical reactors

By Eileen De Guire / January 4, 2013

Cross-sectional SEM images of the corroded polycrystalline 8 mol%-YSZ coupon after testing in the reverse‐flow pyrolysis reactor for about 70 hours showing the corrosion of polycrystalline bulk material to fine-grained dust. Credit: JACerS; Wiley. Metal dusting is a dramatic and catastrophic high-temperature corrosion mechanism. As the term implies, the corrosion process converts a structural alloy…

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