Influence of laser irradiation on deposition characteristics of cold sprayed Stellite-6 coatings

摘要

Highlights?The surface morphology, deposition efficiency, track shape of SLD Stellite-6 coatings were examined.?The surface flatness and deposition efficiency increase with laser irradiation temperature.?The SLD track shapes are influenced by configuration of powder stream and laser beam.?The SLD coatings preserve original microstructure and phase of feedstock material.?The SLD coatings show better wear/corrosion resistant properties than LC coatings.AbstractDepositing hard materials such as Stellite-6 solely by cold spray (CS) is challengeable due to limited ability of plastic deformation. In this study, the deposition of Stellite-6 powder was achieved by supersonic laser deposition (SLD) which combines CS with synchronous laser irradiation. The surface morphology, deposition efficiency, track shape of Stellite-6