THE [100]DISLOCATION IN L1(2) ORDERED ALLOYS

Authors
SCHOECK G
Citation
G. Schoeck, THE [100]DISLOCATION IN L1(2) ORDERED ALLOYS, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 241(1-2), 1998, pp. 14-18
Citations number
13
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
241
Issue
1-2
Year of publication
1998
Pages
14 - 18
Database
ISI
SICI code
0921-5093(1998)241:1-2<14:T[ILOA>2.0.ZU;2-R
Abstract
The core structure of a [100] dislocation in Ni3Al is studied within t he framework of the generalized Peierls model. It is shown for a 45 de grees dislocation that for specific energies of unstable stacking gamm a(0) less than or equal to 2 J m(-2) the dissociation a[100]double rig ht arrow a/2[101]+a/2[10 (1) over bar] will not occur and within a rea sonable range of gamma(0) above 2 J m(-2) never takes place completely . (C) 1998 Elsevier Science S.A.