Phys. Rev. B 75, 184111 (2007) [5 pages]Annealing twins in nanocrystalline fcc metals: A molecular dynamics simulationReceived 13 December 2006; published 23 May 2007 We report fully three-dimensional atomistic molecular dynamics studies of grain growth kinetics in nanocrystalline Cu of 5 nm average grain size. We observe the formation of annealing twins as part of the grain growth process. The grain size and energy evolution was monitored as a function of time for various temperatures, yielding an activation energy for the process. The atomistic mechanism of annealing twin formation from the moving boundaries is described. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.75.184111
DOI:
10.1103/PhysRevB.75.184111
PACS:
61.72.Mm, 61.82.Rx
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