The influence of doping by transition metal elements on the vacancy formation energy in Fe-Al B2 phase

Angelica Strutz, David Fuks, Arik Kiv

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Based on ab initio calculations for Fe-Al B2 phase with and without the vacancies, the authors studied the influence of alloying by Ni, Cr, and V on the energy of vacancy formation. The authors predict that the presence of these alloying elements in the vicinity of the vacancy on the Fe site increases the energy of the vacancy formation. The present article discusses the changes of the electron charge redistribution in the vicinity of the vacancy in Fe-Al alloyed with these transition metals and link the preference of their site occupation with the peculiarities of the electron density redistribution. In addition, the authors report on the results of calculations of different types of antisite defects in Fe-Al and show that the formation of the antisite on the Al site is the energetically preferable configuration for this defect. The obtained results are in agreement with the experimental data.

Original languageEnglish
Pages (from-to)529-533
Number of pages5
JournalJournal of Phase Equilibria and Diffusion
Volume26
Issue number5
DOIs
StatePublished - 1 Oct 2005

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