Modelling the plastic deformation of iron
Abstract
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.
Keywords
dislocation; plastic; simulation; yield; ironISBN
9783866449688Publisher
KIT Scientific PublishingPublisher website
http://www.ksp.kit.edu/Publication date and place
2013Series
Schriftenreihe des Instituts für Angewandte Materialien, Karlsruher Institut für Technologie,Classification
Technology: general issues