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