Fracture of complex metallic alloys: An atomistic study of model systems

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Molecular dynamics simulations of crack propagation are performed for two extreme cases of complex metallic alloys (CMAs): In a model quasicrystal the structure is determined by clusters of atoms, whereas the model C15 Laves phase is a simple periodic stacking of a unit cell. The simulations reveal that the basic building units of the structures also govern their fracture behaviour. Atoms in the Laves phase play a comparable role to the clusters in the quasicrystal. Although the latter are not rigid units, they have to be regarded as significant physical entities.
6 pages, 4 figures, for associated avi file, see http://www.itap.physik.uni-stuttgart.de/~frohmut/MOVIES/C15.LJ.011.100.avi

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Materials Science

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http://salesiana.dossiersoluciones.com/handle/123456789/127213

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0704.1444
 http://arxiv.org/abs/0704.1444
 Philosophical Magazine 86 (2006), 1015
 doi:10.1080/14786430500256326

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arXiv