Effect of TiC content on the microstructure, texture and mechanical properties of 1060/Al–TiC/1060 laminated composites

Abstract

The Al–TiC composites with different TiC contents were fabricated by spark plasma sintering, and then fabricated into the 1060/Al–TiC/1060 laminated composites by hot-roll bonding. The effect of TiC content on the microstructure, texture and mechanical properties of the sandwich laminated composites was studied. The results showed that the development of microstructure and texture through the thickness of 1060 layer was inhomogeneous. The degree of grain-subdivision and the number of high-angle boundaries decreased from the surface to the interface. The strength of the r-cube component decreased from the surface to the interface, whereas the strengths of the cube and β-fiber components increased. The textures in Al–TiC layer were characterized by the Goss orientation and the β-fiber component after hot-roll bonding. The strengths of the Goss and β-fiber components decreased with increasing TiC content. The tensile strength of the laminated composites increased to a maximum value with increasing TiC content to 0.5 vol% and then decreased, while the elongation decreased.