Investigation of nanostructured aluminum/copper composite produced by accumulative roll bonding and folding process

•When the number of ARBF cycle increased, the grains became equiaxed.•The final grain size of aluminum and copper was about 200 and 50 nm, respectively.•With increasing the number of cycles, the hardness increased.•The increase rate of hardness for the copper is higher than the aluminum layer.

In this work, the aluminum/copper multilayered com