EQUILIBRIUM CONFIGURATION OF COAXIAL PRISMATIC DISLOCATION LOOPS AND RELATED SIZE-DEPENDENT PLASTICITY

Authors
XIN XJ DAEHN GS WAGONER RH
Citation
Xj. Xin et al., EQUILIBRIUM CONFIGURATION OF COAXIAL PRISMATIC DISLOCATION LOOPS AND RELATED SIZE-DEPENDENT PLASTICITY, Acta materialia, 45(5), 1997, pp. 1821-1836
Citations number
47
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Acta materialia → ACNP
ISSN journal
13596454
Volume
45
Issue
5
Year of publication
1997
Pages
1821 - 1836
Database
ISI
SICI code
1359-6454(1997)45:5<1821:ECOCPD>2.0.ZU;2-M
Abstract
The equilibrium configurations and positions of coaxial prismatic disl ocation loops are derived using a new algorithm based on minimizing sy stem configurational energy. Solutions in an explicit form are derived for two limiting cases, and the corresponding validity conditions pre sented. A natural material length scale is found which sets the scare for size-dependent plasticity phenomena. A size-sensitivity diagram is derived from the analysis which serves as a guideline in the study of size-dependent plasticity. (C) 1997 Acta Metallurgica Inc.