The Fe based alloy coating was prepared on the surface of 25Cr2Ni4MoV steel substrate by laser cladding.The microstructure,microhardness,shear strength,friction and wear properties of the laser cladding coating were systematically studied.The results show that a good metallurgical bond is formed between Fe based alloy coating and 25Cr2Ni4MoV steel substrate.The laser cladding layer is a typical dendritic crystal,which is composed of light gray and dark gray phases.The microhardness of laser cladding coating is much higher than those of matrix and heat affected zone.The shear strength displacement curve of laser cladding Fe based alloy coating shows the typical characteristics of brittle fracture,with an average shear strength of 28083 MPa.Compared with the 25Cr2Ni4MoV steel substrate,the average dry friction coefficient,wear track depth and average wear volume loss of laser cladding Fe based alloy coatings all decrease by about 25%,45% and 50%,respectively.As a result,the wear resistance of laser cladded Fe based alloy coating is much higher than that of the substrate,and 25Cr2Ni4MoV steel substrate can be effective protected by this type of coating.