High-velocity mass transfer in FCC-metals containing chains of vacancies and interstitial atoms

Using the method of molecular dynamics simulations, the dynamics of structure rearrangement in the course of relaxation in a three-dimensional aluminum is investigated via introduction of one-dimensional chains containing equal number of vacancies and interstitial atoms and located in close-packed p...

Full description

Saved in:
Bibliographic Details
Published in:Russian physics journal 2011-08, Vol.54 (3), p.308-313
Main Authors: Starostenkov, M. D., Markidonov, A. V., Tikhonova, T. A., Potekaev, A. I., Kulagina, V. V.
Format: Article
Language:English
Subjects:
Condensed Matter Physics
Hadrons
Heavy Ions
Lasers
Laws, regulations and rules
Mathematical and Computational Physics
Nuclear Physics
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Telecommunication
Theoretical
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using the method of molecular dynamics simulations, the dynamics of structure rearrangement in the course of relaxation in a three-dimensional aluminum is investigated via introduction of one-dimensional chains containing equal number of vacancies and interstitial atoms and located in close-packed positions along the  directions. This model represents a starting material structure possessing regions with differing mass densities: m + and m – . The process of relaxation is shown to proceed via a number of phases: generation of shock waves, nucleation of vortex displacements of atoms, transformation of shock waves into acoustic waves, and correlated high-velocity collective displacements of atoms from interstitial into vacancy positions. The latter displacements are developed at velocities much higher than acoustic velocity.
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-011-9616-1