Molecular dynamics simulation study of the effect of grain size on the deformation behavior of nanocrystalline body-centered cubic iron
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SCOPUS
- Title
- Molecular dynamics simulation study of the effect of grain size on the deformation behavior of nanocrystalline body-centered cubic iron
- Authors
- Jeon, JB; LEE, BYEONG JOO; Chang, YW
- Date Issued
- 2011-03
- Publisher
- Elsevier
- Abstract
- A molecular dynamics simulation study has been carried out to clarify the effect of grain size on the deformation behavior of nanocrystalline body-centered cubic Fe. Average flow stresses were found to decrease with grain refinement below 14.7 nm, exhibiting a breakdown in the Hall-Petch relation. A change in the dominant deformation mechanism from dislocation glide to grain boundary sliding appeared to be the direct cause of the breakdown in the Hall-Petch relation observed in the present nanocrystalline pure Fe. (C) 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/16654
- DOI
- 10.1016/J.SCRIPTAMAT.2010.11.019
- ISSN
- 1359-6462
- Article Type
- Article
- Citation
- SCRIPTA MATERIALIA, vol. 64, no. 6, page. 494 - 497, 2011-03
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