Deviations and polarity of [100] dislocations in bcc metals

Author(s)
Gunther Schöck, Lorenz Romaner
Abstract

In bcc metals, by reactions between primary dislocations of type a/2 <111 >, junctions with dislocations of type a <001 > are formed, which are glissile in {110} planes. The core structure of these dislocations in tungsten is studied within the framework of the Peierls model. When the dislocations are in or close to edge orientation, the local displacements acquire some components perpendicular to the Burger vector in order to reduce atomic misfit energy of the core.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
Montanuniversität Leoben, Universität Wien
Journal
Philosophical Magazine Letters
Volume
90
Pages
385-391
No. of pages
7
ISSN
0950-0839
DOI
https://doi.org/10.1080/09500831003680760
Publication date
2010
Peer reviewed
Yes
Austrian Fields of Science 2012
103018 Materials physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/deviations-and-polarity-of-100-dislocations-in-bcc-metals(edb2243d-2d75-4668-b5ca-c39c2b5961a3).html