| Abstract: |
Present work mainly focuses on the development and metallurgical characterization of microwave cladding of powder WC10Co2Ni on austenitic stainless steel (SS316) substrate through microwave hybrid heating by exposure of microwave radiation for 300s. The transverse section of microwave cladding is characterized through field emission scanning electron microscope (FE-SEM), x-ray elemental mapping, X-ray diffraction (XRD) and Vickers microhardness. FE-SEM study showed that developed clad is free of pores and cracks along with good metallurgical bond with substrate by mutual diffusion and penetration of Fe, Cr, Ni in substrate towards the clad and W, Co, Ni in clad towards the substrate. The obtained clad is composed of relatively soft matrix of major elements Fe-Cr-Ni, whereby uniform distribution of hard phase skeleton likes structure of dominating WC-Fe elements in soft matrix was observed. The X-ray diffraction pattern study of clad showed the presence of complex metallic compound and metallic carbides. The developed clad is of average microhardness of 1064±99 Hv.
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