(Al,Mg)86Mn14 quasi-crystal and icosahedral cubic τ phase in a thixoformed Mg-Al-Zn alloy (AZ91)

M. Cabibbo, E. Evangelista, S. Spigarelli, M. Talianker

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Abstract

The present letter introduces microstructural observations performed on a thixoformed AZ91 Aluminium alloy after heat treatment. The authors herein reported the existence of "quasi-crystal" precipitates, with an (Al,Mg)86Mn14 composition, and of Icosahedral cubic τ-phase particles (i.e. Mg32(Al,Zn)49).

Original languageEnglish
Pages (from-to)43-46
Number of pages4
JournalMaterials Letters
Volume49
Issue number1
DOIs
StatePublished - 1 May 2001

Keywords

  • AZ91
  • Icosahedra
  • Microstructure
  • Quasi-crystal
  • TEM
  • Thixo-forming

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