Atomistic simulations of nanometric dislocation loops in bcc tungsten

Small dislocation loops formed from self-interstitial atoms (SIAs) are commonly found in irradiated metals. These defects significantly influence the mechanical properties of the materials. Atomistic simulations are used to describe nanometric circular dislocation loops with Burger’s vectors 1/2a0<111>, a0<100>, and a0<110> in bcc tungsten. Particular attention is paid to the habit plane of the 1/2a0<111>loop. Two different embedded atom model (EAM) potentials are used. The energetics and geometry of the loops are studied as a function of their size.


Published in:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 267, 18, 3218-3222
Presented at:
9th International Conference on Computer Simulation of Radiation Effects in Solids, Beijing, Peoples Rep. China, October 12-17, 2008
Year:
2009
Publisher:
Elsevier
ISSN:
0168-583X
ISBN:
0168-583X
Keywords:
Laboratories:
SPC
CRPP




 Record created 2010-05-19, last modified 2018-06-03


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