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Microstructural response of copper foil to a novel double-cross rolling process
- Source :
- Journal of Materials Research and Technology, Vol 9, Iss 6, Pp 15153-15163 (2020)
- Publication Year :
- 2020
- Publisher :
- Elsevier, 2020.
-
Abstract
- 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 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 copper foils facilitated the migration of grain boundary and grain rotation, thus improving bending property.
- Subjects :
- Equiaxed crystals
lcsh:TN1-997
Materials science
chemistry.chemical_element
02 engineering and technology
Bending
01 natural sciences
Biomaterials
Brass
0103 physical sciences
Deformation behavior
Texture (crystalline)
Texture
Composite material
Microstructure
lcsh:Mining engineering. Metallurgy
010302 applied physics
Deformation (mechanics)
Metals and Alloys
021001 nanoscience & nanotechnology
Copper
Surfaces, Coatings and Films
Bending property
chemistry
visual_art
Ceramics and Composites
visual_art.visual_art_medium
Double-cross rolling
Grain boundary
0210 nano-technology
Subjects
Details
- Language :
- English
- ISSN :
- 22387854
- Volume :
- 9
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Research and Technology
- Accession number :
- edsair.doi.dedup.....5466b873998a06941cdc8f45ef78baf7