Based on the technology of laser cladding using coaxial powder feeding,the Stellite6 alloy coating was coated on the surface of 2Cr13 stainless steel.The effects of processing parameters on the macroscopic morphology of the coating were studied,the microstructure and microhardness of the coating were analyzed.The results showed that the flat and defect-free Stellite6 coating could be obtained at the laser power,the scanning speed,the powder feeding rate and the lap ratio of 2.5 kW,5 mm/s,13.2 g/min,and 38 %,respectively.The structure section of the cladding layer included three zones:primary melting zones,inter-channel remelting zones,and inter-layer remelting zones.The microstructures of the cladding layer were composed of cell and dendrites crystals.Compared with the primary melting zone,the microstructures of inter-channel remelting zone and the inter-layer remelting zone were coarse.By reasonably adjusting the residence time of the channels and layers,the proportion of the microstructure of the primary melting zone in the periodic cyclic structure of the cladding layer were increased from 54.9 % to 73.1 %,resulting in the improvement of the overall hardness of the cladding layer.