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通过机械镀方法制备了镀层试样,采用冲击试验和拉伸试验研究了镀层的抗冲击性能及镀层-基体间的结合强度。研究结果表明,镀层的冲击载荷失效为镀层与基体间的剥离失效,随着镀层厚度的增加,镀层的抗冲击性能增强;镀层的拉伸破坏发生在镀层-基体界面,20μm、30μm、60μm镀层的结合强度分别为3.18 MPa、2.18 MPa、3.84 MPa;薄镀层时,拉伸失效主要发生于镀层-基体的界面;厚镀层时,拉伸失效发生于在镀层-基体界面和镀层内。
The coating samples were prepared by mechanical plating method. The impact resistance and tensile test were used to study the impact resistance and the bonding strength between the coating and the substrate. The results show that the impact load failure of the coating is the peeling failure between the coating and the substrate. With the increase of coating thickness, the impact resistance of the coating is enhanced. The tensile failure of the coating occurs at the coating-substrate interface, 20μm, 30μm, 60μm , Respectively. The tensile failure occurred mainly in the interface between the coating and the substrate when the coating was thin. In the case of thick coating, the tensile failure occurred in the coating-substrate interface and the coating.