Crack Evolution and Computational Model Based Thermal Stress Evaluation of Laser Cladding Based on HVOF Sprayed WC/Co Deposits

A comprehensive experimental study on the high-velocity oxygen-fuel (HVOF) sprayed tungsten carbide/cobalt (WC/Co) deposits using laser cladding was conducted. response surface methodology based a central composite design used to analyze, predict and optimize WC/Co of laser-based HVOF coatings. The morphologies microstructures clads were characterized optical microscope, scanning electron microscope X-ray diffraction techniques. crack behavior residual stress-based fractures explored. In addition, relationships between stress clad three factors: power, speed stand-off distance examined. Further, optimization control minimize attained methodology. resulting lower has decreased fracture activities did not easily induce delamination in clads. Findings from this would greatly contribute optimizing experiments achieve an enhanced structural evolution protective coating traditional handicraft products by cladding.