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Materials 2017, 10(5), 538; doi:10.3390/ma10050538

Size Effect on Mechanical Properties and Texture of Pure Copper Foil by Cold Rolling

1
The State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China
2
Research Academy, Northeastern University, Shenyang 110819, China
3
School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China
*
Author to whom correspondence should be addressed.
Academic Editor: Jérôme Chevalier
Received: 12 March 2017 / Revised: 9 April 2017 / Accepted: 3 May 2017 / Published: 16 May 2017
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Abstract

To study the size effect on the properties of copper, tensile tests were performed with pure copper foil (thickness range from 25 μm to 300 μm) by cold rolling. A pronounced size effect was observed at a thickness of 76 μm. The results showed that ultimate strength increased as sample thickness decreased from 300 μm to 100 μm, however, this was decreased as the thickness changed from 76 μm to 25 μm with ultrahigh strain, with the same trend of dislocation density and micro stain. The rolling texture were consisted of copper {112}<111>, brass {011}<211>, and S {123}<634>. These features seemed to be linked to the increase of fraction of surface grain to volume, which led to lower districting on the dislocation slip. View Full-Text
Keywords: size effect; ultimate strength; pure copper; cold rolling; surface grains size effect; ultimate strength; pure copper; cold rolling; surface grains
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Song, M.; Liu, X.; Liu, L. Size Effect on Mechanical Properties and Texture of Pure Copper Foil by Cold Rolling. Materials 2017, 10, 538.

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