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Philosophical Magazine Letters Volume 85, 2005 - Issue 11
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Original Articles

Study on the deformation of nanocrystalline cobalt

X. Y. Zhang Physical Science and Engineering Technology School, Guangxi University, Nanning, 530004, China; School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, ChinaCorrespondence[email protected]
,
Z. L. Hu Physical Science and Engineering Technology School, Guangxi University, Nanning, 530004, China
,
S. J. Zhou School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
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C. Jia School of Material Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China
,
M. Z. Zhou Physical Science and Engineering Technology School, Guangxi University, Nanning, 530004, China
&
B. Y. Xia Physical Science and Engineering Technology School, Guangxi University, Nanning, 530004, China
Pages 595-601 | Received 02 May 2005, Accepted 11 Sep 2005, Published online: 19 Aug 2006
 
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Abstract

A study was carried out on the deformation of nanocrystalline cobalt. For cold-rolled nanocrystalline cobalt, the X-ray diffraction peaks narrowed instead of broadened on deformation. The results of transmission electron microscopy showed that grain size (17.8 nm on average) was not increased. The results can be explained in terms of the production and activity of vacancies and vacancy clusters.

Acknowledgement

This work was supported by the National Nature Science Fund (No. 50471086; No. 50461001).

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