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Thickness Reduction Effect in Obtaining Ultrafine-Grained Microstructure from Oxygen-Free Copper Using High-Ratio Differential Speed Rolling
- Authors
- Kim, W. J.
- Issue Date
- Feb-2011
- Publisher
- AMER SCIENTIFIC PUBLISHERS
- Keywords
- Copper; Ultra Fine Grains; Severe Plastic Deformation; High Strength
- Citation
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.11, no.2, pp.1472 - 1475
- Journal Title
- JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
- Volume
- 11
- Number
- 2
- Start Page
- 1472
- End Page
- 1475
- ISSN
- 1533-4880
- Abstract
- This study has demonstrated a novel method of fabricating ultrafine-grained oxygen free copper sheets by applying high-ratio differential speed rolling (HRDSR) at room temperature that induces severe plastic deformation. Temperature rise of the sample due to friction and plastic deformation during deformation by HRDSR was significant such that beyond a thickness reduction >65%, the grain refining efficiency was reduced. The proposed processing method holds great potential for continuous production of ultrafine-grained copper alloy sheets.
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Related Researcher
- Kim, Woo Jin
- Graduate School (Department of Materials Science and Engineering)