Affiliation:
1. Altai State Technical University
Abstract
In this work, the authors attempted to consider the influence of the geometry of the crystal lattice on the properties of nanowires, which manifest themselves in the process of uni-axial stretching. This work summarizes and systematizes the results of previous studies of the authors. The first group of samples – are typical FCC metal – Ni3Al. For these nanowires, deformation processes in directions with different packing densities of atoms <100>, <110> and <111> were investigated. The second material group studied was an alloy with the non-cubic symmetry of the element cell CuAu I. Correspondingly, this sample was examined under deformation in directions corresponding to different lengths of the sides of the unit cell, <001> and <010>. All the investigations described in this paper were carried out by molecular dynamics method on three-dimensional models using the Morse's pair potentials.
Publisher
Trans Tech Publications, Ltd.
Reference10 articles.
1. Starostenkov M.D., Yashin A.V., Sinitsa N.V., Dudnik E.A., Atomic mechanisms of structural reconstruction of FCC metallic nanowires in the process of tension deformation, In proceedings: 12th International Conference on Fracture 2009, ICF-12 (2009).
2. Yashin A.V., Investigation of the features and stages of deformation of nanofibers of a number of metals and Ni3Al alloy based on a FCC lattice [in Russian], Thesis for a scientific degree, Altai State Technical University named by I.I. Polzunov, Barnaul, 2010. https: /doi. org/10. 13140/RG. 2. 2. 25264. 76806.
3. Potekaev, A.I., Starostenkov, M.D., Sinitsa, N.V., Yashin A.V., Kharina E.G., Kulagina V.V., Mechanisms of structure rearrangements in a nanofiber model of intermetallic compound Ni3Al, containing long-period antiphase boundaries, in the course of high-speed uniaxial tensile loading, Russian Physics Journal 53 (2011).
4. Potekaev, A.I., Starostenkov, M.D., Sinitsa, N.V., Yashin A.V., Kharina E.G., Kulagina V.V., Peculiar behavior of structure rearrangement in nanofiber of intermetallic Ni3Al, containing long-period paired thermal anti-phase boundaries, under high-rate tensile uniaxial loading along <001>, Russian Physics Journal 54 (2011).
5. Starostenkov M., Yashin A., Sinitsa N., Structural transformation in nanowires CuAu I with superstructure of L10 of tetragonal symmetry at uni-axial tension deformation, Key Engineering Materials, 592-593 (2014).