首页|Interaction between migrating (10 <(1)over bar > 2) twin boundary and extended <a> dislocations inside twin in pure Mg
Interaction between migrating (10 <(1)over bar > 2) twin boundary and extended <a> dislocations inside twin in pure Mg
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NSTL
Elsevier
Interaction between a matrix prismatic <c>edge dislocation and a migrating (10 <(1)over bar > 2) twin boundary results in extended basal <a> mixed dislocations in the twin lattice. The interaction between the resultant <a> dislocation and the migrating twin boundary is studied using molecular dynamics simulations. The <a> dislocation tends to detach from or connect to the twin boundary, when its slip plane intersects a compression or extension site of the twin boundary. When the <a> dislocation connects to the twin boundary, connection always occurs with a 90 Shockley partial and a basal-prismatic (BP) or prismatic-basal (PB) two-atomic-layer-height step, depending on whether the Burgers vector direction of the Shockley partial points away from or towards the twin boundary. The BP or PB two-atomic-layer-height step is sessile, in contrast to those that are not connected to such <a> dislocation.
MagnesiumI-2 stacking faultBasal-prismatic or prismatic-basal stepMolecular dynamicsDislocation-twin boundary interactionsHCP METALSINTERFACESMECHANISMSMOBILITYSIMULATIONSGROWTHBASAL
NSTL
Elsevier
