The effects of solute segregation on the evolution and strength of dislocation junctions

TitleThe effects of solute segregation on the evolution and strength of dislocation junctions
Publication TypeBook Chapter
Year of Publication2008
AuthorsChen Q, Liu XY, Biner SB
EditorTikare V, Murch GE, Soisson F, Kang JK
Book TitleTheory, Modeling and Numerical Simulation of Multi-Physics Materials Behavior
CityStafa-Zurich
PublisherTrans Tech Publications Ltd
Volume139
Pages65-70
Series TitleSolid State Phenomena
ISBN Number1012-0394
Accession NumberISI:000257457900010
Keywordsdislocation dynamics, dislocation junction, field, kinetic Monte Carlo, segregation, simulation, solute
Abstract

In this study, the role of solute segregation on the strength and the evolution behavior of dislocation junctions is studied by utilizing kinetic Monte Carlo and 3D dislocation dynamics simulations. The different solute concentrations and the character of the junctions are all included in the simulations in an effort to make a parametric investigation. The results indicate that solute segregation can lead to both strengthening and weakening behavior depending upon the evolution of the dislocation junctions.