Alloy destabilization by dislocations

Fraņois Ĺonard, Mikko Haataja

Research output: Contribution to journalArticle

12 Scopus citations

Abstract

Thermodynamic phase diagrams of alloys are usually computed or experimentally determined under the assumption of perfect crystallinity of the material. Here, we show that dislocations can change the phase stability of alloys and increase the size of the miscibility gap. This dislocation-induced destabilization of the alloy originates from an interaction between the elastic fields of the dislocations and those due to composition variations. We predict that the characteristic time scale for the growth of compositional fluctuations depends inversely on the dislocation mobility.

Original languageEnglish (US)
Article number181909
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Volume86
Issue number18
DOIs
StatePublished - May 2 2005

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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