Research on the Preparation of TiB2/Fe64Ni36 Composite Coating by Laser Cladding
Fe-Ni-Ti-B coating was prepared on the surface of 45 steel substrate,and the changes in microstructure and properties of the cladding layer under different B/Ti ratios were studied.The microstructure of the coating was analyzed using metallographic microscope,scanning electron microscope,EBSD,etc.,and the hardness of the coating was characterized using a hardness tester.The experimental results show that coatings with different B/Ti contents have good adhesion to the substrate,with a relatively flat surface and no obvious pores.The addition of B and Ti elements will produce TiB2 reinforcement phase and eutectic structure,improving the hardness of the coating.
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