Steel Boiler Tube with HVOF Coating: Peculiarity and Interfacial

Abstract:

In this research, a NiCrMoFeCoAl-30%Cr3C2 composite finish was deposited using an HVOF technique on the T22 bare steel. Cr3C2 coatings provide excellent durability and corrosion resistance. When manufacturing homogenous and dense Cr₃C₂ layers with decreased as-deposited greater hardness, surface roughness, and enhanced quality corrosion resistance, high-velocity oxy-fuel spraying with suspension feedstock has been a viable choice. Scanning electron microscopy with energy dispersive spectroscopy and X-ray diffraction have been used to examine the specimen's microstructure. Coating properties such as thickness, microhardness, and porosity were measured.

• Periodical: Materials Science Forum (Volume 1119)
• Pages: 87-92
• DOI: https://doi.org/10.4028/p-HxPB5z
• Online since: March 2024
• Authors: P. Mohan, K. Hari Ram, D.S. Jenaris*, D.S. Manoj Abraham, R. Rethan Raj
• Keywords: HVOF Composite Coating, Microhardness, Porosity, SEM/EDStechnique

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