Molecular dynamics simulation study of the effect of grain size on the deformation behavior of nanocrystalline body-centered cubic iron
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...
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| Veröffentlicht in: | Scripta materialia 2011-03, Vol.64 (6), p.494-497 |
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| container_end_page | 497 |
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| container_title | Scripta materialia |
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| creator | Jeon, Jong Bae Lee, Byeong-Joo Chang, Young Won |
| description | 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. |
| doi_str_mv | 10.1016/j.scriptamat.2010.11.019 |
| format | Article |
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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.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.scriptamat.2010.11.019</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1359-6462 |
| ispartof | Scripta materialia, 2011-03, Vol.64 (6), p.494-497 |
| issn | 1359-6462 1872-8456 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Breakdown Deformation Grain size Hall–Petch relation Iron Mechanical properties Molecular dynamics Nanocrystalline materials Nanocrystals Simulation Yield strength |
| title | Molecular dynamics simulation study of the effect of grain size on the deformation behavior of nanocrystalline body-centered cubic iron |
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