Screw dislocations in BCC transition metals: from ab initio modeling to yield criterion

We show here how density functional theory calculations can be used to predict the temperature- and orientation-dependence of the yield stress of body-centered cubic (BCC) metals in the thermally-activated regime where plasticity is governed by the glide of screw dislocations with a $1/2 \langle 111...

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Bibliographic Details
Main Authors: Clouet, Emmanuel, Bienvenu, Baptiste, Dezerald, Lucile, Rodney, David
Format: Article
Language:English
Published: Académie des sciences 2021-06-01
Series:Comptes Rendus. Physique
Subjects:
Online Access:https://comptes-rendus.academie-sciences.fr/physique/articles/10.5802/crphys.75/