Atomistic simulation of ½<111> screw dislocations in BCC tungsten

15. 12. 2008

J. Fikar, R. Schäublin and C. Björkas

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.

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