Abstract
A promising technology for improving the wear resistance of certain metallic components is laser cladding. This study assessed the martensitic and austenitic stainless steels with laser cladding for wear resistance and microstructural characteristics. Martensitic stainless steel (AISI 420) and austenitic stainless steel (AISI 304L) were both employed in this investigation. A cobalt alloy containing powdered iron, chromium, and other elements was laser clad onto both materials. Then, to assess the surface topographical characteristics of the coatings, atomic force microscopy was employed. The findings demonstrated that, in comparison to the austenitic stainless steel coating, the martensitic stainless steel coating displayed a greater wear resistance. Additionally, the coatings had various surface topographies, with martensitic stainless steel being the most evident from the results of the atomic force microscopy. When compared to substrates without coatings, it has been found that laser claddings provide substrates with higher elongation to fracture.
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