以39Mo-35Ni-26Si(w%)合金粉末为原料,采用激光熔覆技术,在1Cr18Ni9Ti不锈钢基材表面制得以Mo2Ni3Si金属硅化物为初生相,以Mo2Ni3Si/NiSi共晶相为基体的金属硅化物耐磨复合材料涂层.涂层的常温干滑动磨损试验结果表明,在磨损过程中,Mo2Ni3Si/NiSi共晶相轻微地优先磨损,Mo2Ni3Si金属硅化物微微凸出于磨损表面,起到抗磨的骨干作用.由于Mo2Ni3Si金属硅化物具有很高的硬度和很强的原子间键合力,在磨损过程中难于变形和粘着,激光熔覆Mo2Ni3Si/NiSi金属硅化物复合材料涂层具有优异的耐磨性,与1Cr18Ni9Ti标样相比,涂层的耐磨性提高了56倍.
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