Effects of Vibration Parameters on Microstructure and Elements Distribution of Induction Cladding Coatings

High performance nickel base alloy and tungsten carbide composite coating was prepared by mechanical vibration and high frequency induction cladding. The microstructure and elements distribution of the nickel-based cladding layer were analyzed by scanning electron microscopy and energy dispersive spectroscopy. The effects of vibration parameters on the microstructure and element distribution of the alloy cladding layer were investigated. The experimental results show that when the amplitude is 0.7 mm, the top structure of the cladding layer changes from dendrites to cell crystals, the grain refinement effect is better, the amplitude has little effect on the elements distribution of the cladding layer; the influence of vibration frequency on the thickness and element distribution of the diffusion layer is larger, when the vibration frequency increases from 50 Hz to 100 Hz, the thickness of the diffusion layer increases from 65 μm to 83 μm. When the frequency is 100 Hz, the content of Cr and W at the top of the cladding layer is the maximum; when the vibration direction is horizontal vibration, the distribution of the structure in the cladding layer is uneven, the dendrites are coarse, and there is no refining effect of grains, and the effect of mechanical vibration in the vertical direction is better.