Microstructural response of copper foil to a novel double-cross rolling process

Microstructural response of copper foil to a novel double-cross rolling process

Blog Article

Bending resistance is regarded as a significant factor in achieving the widespread application of copper foils.This paper proposed a novel double-cross rolling process, which improved the bending fatigue life of copper foils by as much as 101% in comparation with conventional rolling.In this study, an investigation was conducted into the effects of double-cross rolling on the microstructure and texture of copper foils and the strengthening mechanism during the bending test gumball bere was discussed.

Results show that double-cross rolling could change the deformation behavior on bright and matt surfaces, resulting in equiaxed grains on both surfaces and some fine grains.Both surfaces were dominated by Brass and S textures, which can be attributable to from non-uniform and shear deformation respectively.Weak Goss and Cube textures resulted from the fine grains remaining after heat treatment.

After double-cross rolling, the strain induced subgrains of katin harold jacket copper foils facilitated the migration of grain boundary and grain rotation, thus improving bending property.