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采用铸造-热处理复合工艺制备V8C7颗粒增强铁基表面复合材料试样,并用SEM、XRD等方法,观察分析了其组织形貌,用TUKON2100型显微硬度计测量了其硬度,用ML-100磨料磨损试验机进行了不同载荷下的磨损试验。结果表明,所制备的V8C7颗粒增强铁基表面复合材料试样的最大显微硬度是2333HV0.05;在室温条件下,当载荷为15N时,其平均耐磨性约是灰铸铁的13倍,在很大程度上提高了铁基体的耐磨性能。
V8C7 particle-reinforced iron-based surface composite samples were prepared by casting-heat treatment composite process. The microstructure of the samples was observed and analyzed by SEM and XRD. The hardness of the samples was measured by TUKON2100 microhardness tester. Abrasion Tester under different load wear test. The results show that the maximum microhardness of the prepared V8C7 particle reinforced Fe-based composite is 2333 HV0.05; at room temperature, the average wear resistance is about 13 times that of gray cast iron when the load is 15 N, To a large extent, improve the wear resistance of the iron matrix.