The Effects of Solute Segregation on the Evolution and Strength of Dislocation Junctions

Qian Chen; X.Y. Liu; S.B. Biner

doi:10.4028/www.scientific.net/SSP.139.65

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First-Principles Calculations of Pd/Au(100) Interfaces with Adsorbates
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In-Plane Rotated Crystal Structure in Continuous Growth of Bismuth Cuprate Superconducting Film
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Dynamical Interaction between Thermally Activated Glide of Screw Dislocation and Self-Interstitial Clusters in Bcc Fe
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The Effects of Solute Segregation on the Evolution and Strength of Dislocation Junctions
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Physics Mechanisms Involved in the Formation and Recrystallization of Amorphous Regions in Si through Ion Irradiation
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Hotspot Formation in Shock-Induced Void Collapse
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Molecular Dynamics Simulation of Nanocrystalline Tantalum under Uniaxial Tension
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Diffusion Mechanisms near Tilt Grain Boundaries in Ni₃Al Intermetallide
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The Effects of Solute Segregation on the Evolution and Strength of Dislocation Junctions

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.