[HTML][HTML] Improving bending property of copper foil by the combination of double-rolling and cross rolling

J Li, X Ren, Z Ling, H Wang - Journal of Materials Research and …, 2020 - Elsevier
J Li, X Ren, Z Ling, H Wang
Journal of Materials Research and Technology, 2020Elsevier
Copper foils with excellent bending property were fabricated by double-rolling followed by
cross rolling. The deformation characteristics of the two advanced rolling processes
introduce high density of grain boundaries and dislocations in copper foils. Due to high
densities of grain boundaries, dislocations and strong single texture, bending cracks are fine
and dispersive, a 101.0% improvement of the bending fatigue life compared to copper foils
fabricated by conventional rolling process. After bending fracture, concentrated dislocation …
Abstract
Copper foils with excellent bending property were fabricated by double-rolling followed by cross rolling. The deformation characteristics of the two advanced rolling processes introduce high density of grain boundaries and dislocations in copper foils. Due to high densities of grain boundaries, dislocations and strong single texture, bending cracks are fine and dispersive, a 101.0% improvement of the bending fatigue life compared to copper foils fabricated by conventional rolling process. After bending fracture, concentrated dislocation and fine dispersive cracks can be observed.
Elsevier
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