利用碳纳米管作为增强相制备镍磷基复合镀层,并对其表面形貌和耐摩擦磨损性能进行了测试分析.结果表明,碳纳米管均匀地嵌镶于基体中,且端头露出,覆盖于基体表面;镀层具有优良的耐磨性和自润滑性.这是由于碳纳米管具有较高的强度和一定的自润滑性,加之以网络和缠绕形态分布于基体中,增大了复合相的粘结力,使碳纳米管在磨损时不易拨出而脱落.
Carbon nanotube was used as a reinforcement agent to prepare Ni-P matrix composite coating. The tribological behaviour of the composite coating was
examined on a reciprocating wear test machine. The surface morphologies before and after wear test were analyzed by scanning electron microscopy. The results show that the carbon nanotubes
are uniformly embedded in the matrix and one end protruded from the surface. The Ni-P-carbon nanotube composite coating has high wear resistance and self-lubrication. The CNTs layer in the
matrix protects the surface of the matrix from wearing. Meanwhile the incorporation of the CNTs suppresses the plastic deformation and enhances the mechanical properties of the coating.
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