Interfacial Bonding Properties of Metal Bushing with Composite Structure

Abstract

：In order to investigate the bonding properties of the interface of laminated metal composites, a new type of composite structure bushing babbitt alloy ZChSnSb8-4 is studied based on the modelling characteristics of atomic substitution method. Considering the proportion of three components of Cu 6 Sn 5 , SnSb, Sn in babbitt alloy, the interfacial bonding properties of multilayer alloy composite bushing are simulated and studied using molecular dynamics method. The results show that the minimum interfacial bonding energy of five-layer structure bushing is 33.87% higher than that of three-layer structure bushing, so the interfacial bonding performance of five-layer structure bushing is better than that of three-layer structure bushing. Meanwhile, according to the bonding energy of the adjacent two interfaces of different structure bushing, it is found that the dangerous bonding interface may be caused by different composite layer bushing. The interfacial bonding energy betweensteel-lead alloy layer andnickel gate layer is the largest and the bond is the strongest, and the interface bonding energy between nickel gate layer and babbitt alloy layer is the least, and the phenomenon of alloy falling off is the most likely. A new type of compound structure bushing is studied from the molecular level, and the bonding mechanism of the interfaces provides a reference for the production practice.