Formation of icosahedral phase in an Al93Fe3Cr2Ti2 bulk alloy

K. B. Kim*, W. Xu, M. Tomut, M. Stoica, M. Calin, S. Yi, W. H. Lee, J. Eckert

*Corresponding author for this work

Research output: Contribution to journalLetterpeer-review

12 Citations (Scopus)

Abstract

The microstructural investigation of a suction-cast Al93Fe3Cr2Ti2 bulk alloy reveals that an icosahedral phase forms together with monoclinic Al13(Fe,Cr)4 and tetragonal Al3Ti in an α-Al matrix. The icosahedral phase is often surrounded by Al3Ti particles indicating that the formation of the icosahedral phase strongly competes with the Al3Ti phase. Chemical analysis reveals that Ti has a strong influence to stabilize the Al3Ti phase. In contrast, both Cr and Fe are effective to stabilize the icosahedral phase.

Original languageEnglish
Pages (from-to)L1–L4
Number of pages4
JournalJournal of Alloys and Compounds
Volume436
Issue number1-2
DOIs
Publication statusPublished - 14 Jun 2007
Externally publishedYes

Keywords

  • Icosahedral phase
  • Metals and alloys
  • Microstructure

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