In addition to the heat treatment process,the rolling process is also an important factor affecting the stability and interface bonding strength of cast-rolled Ti/Al composite plates.In this paper,different Ti/Al composite plates were obtained by changing the rolling temperature and deformation during the process of casting and rolling.The microstructure and interface bonding properties of the composite plates were characterized and tested by means of SEM,EBSD,XRD,etc.The results show that when rolling at different temperatures with 50%deformation,the composite plate warps to different degrees.Under high-magnification scanning electron microscopy,a serrated interface is observed at a rolling temperature of 470℃,while a wavy interface is observed at 500 and 530℃.Moreover,increasing the rolling temperature enhances the bonding strength of the composite plate.When the deformation is less than 50%,the average bonding strength of the composite plate increases with increasing deformation during the rolling process at a constant temperature.When the deformation amount is 75%,the titanium layer is too thin,and the change is uneven,resulting in the fracture of the titanium layer and the failure of the composite plate.In summary,when the temperature is 500℃and the rolling deformation is 50%,the average bonding strength of the composite plate is the greatest.
维普
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