Microstructure and Corrosion Resistance of Fe-Based Amorphous Coating Prepared Atmospheric Plasma Spraying

Abstract:

Fe-based amorphous coating was prepared on stainless steel substrates by atmospheric plasma spraying (APS) using Fe-based amorphous powder as feedstock. Microstructures of the coating were investigated by means of X-ray diffraction (XRD), scanning electron microscopy (SEM). The corrosion behavior of coating and stainless steel were evaluated respectively in 3.5% NaCl, 10% NaOH and 1 mol/L H2SO4 aqueous solutions by electrochemical workstation. The results indicated that the coating was composed of most amorphous phase and some Fe-Cr crystalline phase. The coating exhibited the better corrosion resistance in H2SO4 solution, while the worse in NaOH.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 1768-1771
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.1768
• Online since: July 2012
• Authors: Xiao Bing Zhao, Zhi Hui Ye
• Keywords: Amorphous Coating, Corrosion Resistance, Iron, Plasma Spraying

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