Modelling the plastic deformation of iron
The 1/2<111> screw dislocations in bcc iron are studied by atomistic simulations. An analytical yield criterion captures correctly the non-Schmid plastic behavior. A model Peierls potential develops a link between the atomistic modeling at 0 K and the thermally activated dislocation motion. Al...
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| Hoofdauteur: | |
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| Formaat: | Elektronisch Hoofdstuk |
| Taal: | Engels |
| Gepubliceerd in: |
KIT Scientific Publishing
2013
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| Reeks: | Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie
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| Onderwerpen: | |
| Online toegang: | DOAB: download the publication DOAB: description of the publication |
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| Samenvatting: | The 1/2<111> screw dislocations in bcc iron are studied by atomistic simulations. An analytical yield criterion captures correctly the non-Schmid plastic behavior. A model Peierls potential develops a link between the atomistic modeling at 0 K and the thermally activated dislocation motion. All predicted features agree well with experimental observations. This work establishes a consistent bottom-up model that provides an insight into the microscopic origins of the plastic behavior of bcc iron. |
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| Fysieke beschrijving: | 1 electronic resource (XII, 146 p. p.) |
| ISBN: | KSP/1000032216 9783866449688 |
| Toegang: | Open Access |