Effect of laser cladding parameters in NbC reinforced 316L austenitic stainless steel composite depositions on a mild steel

The cladding process aims to improve mechanical, chemical, and physical features in metal surfaces. laser is frequently used promote such alterations through deposition of metals/alloys with superior mechanical behavior on the substrate. In this contribution, an ASTM A36 mild steel was covered AISI 316L reinforced niobium carbide (NbC) powder as a filler using multiple steps. effect studied parameters geometry, surface appearance, dilution, macrostructural evaluated. power, scanning speed, mixing ratios were altered, while other kept constant. Increases power speed resulted increased dilution region, whereas coating reinforcement material rising led decreased dilution. flow strongly influence penetration bead-on-plate deposits. This attributed beam’s interaction substrate due named shadow effect. deposit governed by Marangoni effect, which case presents single upward direction center descending from sides, determines location particles pores when 10% NbC reinforcing particles. For 30% NbC, particle distribution porosities are homogeneous inside pool, more significant agitation produced NbC. associated particles’ dragging gas towards pool precipitate dissolution.