STACKING-FAULT ENERGIES OF RANDOM METALLIC ALLOYS

Authors
CRAMPIN S VVEDENSKY DD MONNIER R
Citation
S. Crampin et al., STACKING-FAULT ENERGIES OF RANDOM METALLIC ALLOYS, Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties, 67(6), 1993, pp. 1447-1457
Citations number
24
Categorie Soggetti
Physics, Applied
Journal title
Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties → ACNP
ISSN journal
01418610
Volume
67
Issue
6
Year of publication
1993
Pages
1447 - 1457
Database
ISI
SICI code
0141-8610(1993)67:6<1447:SEORMA>2.0.ZU;2-F
Abstract
Stacking fault energies in dilute Cu(Al) alloys and across the composi tion range of PdAg alloys are calculated from first principles using t he layer Korringa-Kohn-Rostoker method and treating the compositional disorder within the coherent potential approximation. In Cu(Al), rigid -band behaviour results in a sharp reduction in the fault energy with Al concentration. The non-uniform variation of the fault energy in PdA g is understood in terms of the relative band-widths and d-resonance e nergies of Pd and Ag.