Effect of the probe size and interaction volume on quantitative x-ray maps across interfaces of a Cu-Al roll bonded laminate

Metal laminates have experienced rapid development in functional and high performance engineering applications. These laminated materials generally possess enhanced mechanical properties, leading to improved service performance. Roll bonding is recognized as an effective method in the manufacture of metal laminates. In the roll bonding process, the metals are first bonded under appropriate rolling conditions. Sintering heat treatments are then applied to the bonded metals to enhance their bond strength. The atomic movement of the metallic elements, across the interfacial areas, was analyzed via compositional profile and x-ray mapping analyses. The distribution of the metallic elements and the developments of the various metallic phases were identified and their effects on the property development of the metal laminate were studied.