An assessment of the entire Al-Fe system including D03 ordering

Bo Sundman, Ikuo Ohnuma, Nathalie Dupin, Ursula R. Kattner, Suzana G. Fries

Research output: Contribution to journalArticlepeer-review

152 Citations (Scopus)

Abstract

The Al-Fe system is important for many alloys and the new interest in iron aluminides makes it necessary to improve the modeling of the different ordered forms on the body-centered cubic lattice in this system. This has now been done using a four-sublattice model based on the compound energy formalism, which can describe disordered A2 and the B2, D 03 and B32 ordering. The chemical and ferromagnetic ordering transitions can be both first and second-order and they have a strong interaction. Almost all available experimental and theoretical data for all phases in the system have been fitted within estimated uncertainties.

Original languageEnglish
Pages (from-to)2896-2908
Number of pages13
JournalActa Materialia
Volume57
Issue number10
DOIs
Publication statusPublished - 2009 Jun 1

Keywords

  • Al-Fe
  • Calphad
  • Compound energy formalism
  • Ordering
  • Phase diagram

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Polymers and Plastics
  • Metals and Alloys

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