Abstract
Cr3C2-25(NiCr) and Cr3C2-25(NiCr)+0.4%CeO2 coatings were deposited on nickel-based superalloy Superni 600 by Detonation-gun technique. Studies were conducted on bare and coated alloys in molten salt environment (Na2SO4-25%NaCl) at 900 °C under cyclic condition. Characterization of the corrosion product was done using field emission scanning electron microscopy/energy dispersive spectroscopy and x-ray diffraction techniques. The bare Superni 600 shows penetration of corrosion beneath the metal layer thereby indicating internal oxidation. The coating of Cr3C2-25(NiCr) with 0.4%CeO2 leads to the formation of adherent scale.
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Mudgal, D., Kumar, S., Singh, S. et al. Corrosion Behavior of Bare, Cr3C2-25%(NiCr), and Cr3C2-25%(NiCr)+0.4%CeO2-Coated Superni 600 Under Molten Salt at 900 °C. J. of Materi Eng and Perform 23, 3805–3818 (2014). https://doi.org/10.1007/s11665-014-1177-3
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DOI: https://doi.org/10.1007/s11665-014-1177-3