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以Fe60自熔合金粉末和碳化钨粉末为原料,利用氧-乙炔火焰喷熔方法在45钢表面制备了碳化钨复合材料耐磨喷熔层;用扫描电子显微镜(SEM)、场发射扫描电镜(FEGSEM)和能量色散谱仪(EDS)等技术分析了喷熔层的显微组织结构;考察了复合喷熔层在磨粒磨损性能。结果表明:WC颗粒均匀分布在复合材料喷熔层组织中,其组织结构均匀并弥散分布着细小的硬质相;复合材料喷熔层在滑动干摩擦条件下表现出优异的耐磨粒磨损性能,碳化钨对喷熔层有显著的增强作用。
Using Fe60 self-fluxing alloy powder and tungsten carbide powder as raw materials, wear-resistant spray-melting layer of tungsten carbide composite was prepared on oxygen-acetylene flame spray surface by scanning electron microscopy (SEM), field emission scanning electron microscopy FEGSEM) and energy dispersive spectroscopy (EDS) were used to analyze the microstructure of the sprayed layer. The abrasive wear behavior of the composite sprayed layer was also investigated. The results show that the WC particles are uniformly distributed in the sprayed layer of the composite material, and the microstructure of the composite is homogeneous and dispersed with fine hard phases. The sprayed layer of the composite material shows excellent abrasion resistance under sliding dry friction conditions , Tungsten carbide on the spray layer has a significant enhancement.