Atomistic Simulation of ½<111> Screw Dislocations in BCC Tungsten

Jan Fikar; Robin Schäublin; Carolina Björkas

doi:10.4028/www.scientific.net/AMR.59.247

Paper Titles

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Materials for Advanced Gas-Cooled Nuclear Systems
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Materials for the Very High Temperature Reactor-Results and Progress within the Fifth and Sixth Framework Programmes
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Atomistic Simulation of ½<111> Screw Dislocations in BCC Tungsten
p.247

Ab-Initio Modelling of Point Defect-Impurity Interaction in Tungsten and other BCC Transition Metals
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Characterization of MeV Ion-Irradiated SiC_f/SiC Composites Prepared with Different Methods
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Numerical Simulation and Experimental Analysis of Laser Surface Remelting of AISI 420 Stainless Steel Samples
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Microcharacterization of Damage in Materials for Advanced Nuclear Fission Plants
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Atomistic Simulation of ½<111> Screw Dislocations in BCC Tungsten

Abstract:

Atomistic simulations are used to describe the ½<111> screw dislocation in tungsten. Two different embedded atom model (EAM) potentials and one bond-order potential (BOP) are compared. A new analytical approach for constructing asymmetrical screw dislocations is presented.