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采用真空吸铸制备了三维连续镍网增强ZL109复合材料,利用M-200型摩擦磨损试验机对复合材料在干摩擦条件下的磨损行为及磨损机理进行了研究。结果表明,三维连续镍网与基体界面处生成了新相Al3Ni2;复合材料的耐磨性始终优于基体合金,且随着网络孔径的减小,复合材料的的耐磨性增强。在磨损过程中,ZL109为典型的粘着磨损,复合材料为粘着磨损和磨粒磨损同时起作用。
A three-dimensional continuous nickel mesh reinforced ZL109 composite was prepared by vacuum suction casting. The wear behavior and wear mechanism of the composite under dry friction condition were studied by M-200 friction and wear tester. The results show that the new phase Al3Ni2 is formed at the interface between the three-dimensional continuous nickel mesh and the matrix. The wear resistance of the composite is always better than that of the matrix alloy. With the decrease of the network pore size, the wear resistance of the composite increases. In the wear process, ZL109 is a typical adhesive wear, composite materials for adhesive wear and abrasive wear play a role.