The high-strength copper/steel bimetal composite guide plates were produced by using two kinds of method such as liquid copper and steel casting cladding

liquid steel and copper casting cladding.The interface characteristics of the composite guide plate prepared was analyzed by observing the microstructures and measuring the elements distribution.The results show that desirable metallurgical bonding can be obtained at the copper/steel interface by the two methods.Atoms in high-strength copper/steel bimetal are preferential to diffusion along the metal surface and intergranular infiltration in composite process

and the main diffusion channel is grain boundary.The interfacial bonding of high-strength copper/steel bimetal can be achieved as a result of formation of Fe-Cu alloy phase in the Fe-rich and Cu-rich areas by surface wet-spread and atoms diffusion.