Research on Influence of Mg and Zn Elements on Interfacial Mesophases of Cu/Al Multilayer Materials
In order to study the influence of Mg and Zn elements on the interfacial mesophase of Cu/Al multilayer mate-rials,the Cu/Al multilayer materials were annealed,and the interfacial mesophase was analyzed by XRD,SEM and EDX energy spectrum detection methods,so it was obtained that the results of the influence of Mg and Zn elements on the distri-bution law of interfacial mesophase for Cu/Al multilayer materials and the fracture position of interfacial layer.Finally,the conclusions are drawn,that was,after annealing at 300℃×5 h,when the interface was pure copper/pure aluminum,only CuAl2 phase was generated at the Cu/Al interface,and the interface layer fracture occurred between the copper matrix and CuAl2 phase.When the interface was pure copper/aluminum alloy,no CuAl2 phase was formed at the interface of Cu/Al al-loy under the action of Mg and Zn elements.After annealing at 400℃×5 h,the mesophase uniform distribution of Cu/Al interface was Cu9 Al4 and CuAl2,but their thickness distribution was different,the effects of Mg and Zn were not obvious at this time.After annealing at 500℃×5 h,when the interface was pure copper/pure aluminum,the mesophase distribution of Cu/Al interface was Cu9 Al4,CuAl and CuAl2,the interface layer fracture occurred in CuAl phase or between CuAl2 phase and Cu9 Al4 phase.When the interface was pure copper/aluminum alloy,mainly under the action of Mg element,the effect of Zn element was not obvious at this time,the mesophase distribution of Cu/Al interface became Cu9 Al4,CuAl,Al5 Cu6 Mg2 and CuAl2,the interface layer fracture occurred in CuAl2 phase or between CuAl phase and CuAl2 phase.
Cu/Al multilayer materialsMg and Zn elementsannealinginterfacemesophase
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NSTL
万方数据
维普
