Influence of thermomechanical processing sequence on properties of AA6082-IF steel cold roll bonded composite sheet

Abstract

Cold roll bonded tri-layered composites consisting of AA6082 and IF steel have been produced. The goal was to find the optimal sequence of solutionizing, aging and rolling, for obtaining good bond strength and at the same time, a precipitation hardened aluminum structure. The influence of rolling temperature was also investigated. Results show that the sequence of the thermomechanical process influences the interface characteristics and the final bond strength. The different thermomechanical sequences did not have any negative effects on the aluminums aging potential.