Local structural transformations in the fcc lattice in various contact interaction. Molecular dynamics study; Physical Mesomechanics; Vol. 15, iss. 3

Local structural transformations in the fcc lattice in various contact interaction. Molecular dynamics study; Physical Mesomechanics; Vol. 15, iss. 3

Bibliographic Details
Parent link:Physical Mesomechanics.— , 1998-
Vol. 15, iss. 3.— 2012.— [P. 147-154]
Corporate Author: Национальный исследовательский Томский политехнический университет (ТПУ) Институт физики высоких технологий (ИФВТ) Кафедра физики высоких технологий в машиностроении (ФВТМ)
Other Authors: Psakhie S. G. Sergey Grigorievich, Zolnikov K. P., Dmitriev A. I. Andrey Ivanovich, Kryzhevich D. S., · Nikonov A. Yu.
Summary:Title screen
The work is a molecular dynamics study of the peculiarities of local structural transformations in a copper crystallite at the atomic level in contact interaction of various types: shear loading of perfectly conjugate surfaces, local shear loading and nanoindentation. Interatomic interaction is described in the framework of the embedded atom method. It is shown that initial accommodation of the loaded crystallite proceeds through local structural transformations giving rise to higher-rank defects such as dislocations, stacking faults, interfaces, etc. In further plastic deformation, the structural defects propagate from the contact zone to the crystallite bulk. The egress of structural defects to a free surface causes deformation of the model crystallite. The deformation pattern can evolve, depending on the loading conditions, with a change in crystallographic orientation of the crystallite near the contact zone, generation of misoriented nano-sized regions, and eventually formation of a stable nanostructural state. The obtained results allow conceptually new understanding of the nature of defect generation in a crystalline structure during the nucleation and development of plastic deformation in loaded materials.
Режим доступа: по договору с организацией-держателем ресурса
Language:English
Published: 2012
Subjects:
труды учёных ТПУ
электронный ресурс
пластическая деформация
молекулярная динамика
Online Access:http://dx.doi.org/10.1134/S1029959912020026
Format: Electronic Book Chapter
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=653961

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