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To Analyse Microstructural Characterisation of HVOF Spray Coated SS316L Using Ni80Cr and Cr3C2–NiCr Alloy

Yatan Nagpal

Abstract


This paper aims to study the microstructural characterisation and analysis of thermal spray coated stainless steel (SS316L) specimen. For this work, the coating materials used were Ni80Cr and Cr3C2–NiCr alloy, and the coating was done by high-velocity oxygen fuel method. Both the coatings were successfully deposited on the substrate. Coatings were examined by scanning electron microscopy in order to compare microstructural characteristics of both the coatings. The results revealed that SS316L specimen coated with Ni80Cr proves to be more prominent and effective with less porosity and good overall bonding and adhesive strength as compared to Cr3C2–NiCr coating. Also, particles were well bonded when coated with multilayer Ni80Cr on SS316L specimen.

Keywords


coating, Cr3C2–NiCr, HVOF, microstructure, Ni80Cr, SS316L, SEM

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References


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