Electron microscopy of an icosahedral phase in a rapidly solidified Al18Mg3Mn2 complex metallic alloy

N. K. Mukhopadhyay, H. J. Chang, J. Y. Lee, D. H. Kim

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The icosahedral quasicrystal (QC) has been found to form, along with a minor amount of α-Al, in the rapidly solidified Al18Mg3Mn2 complex metallic alloy. From the compositional analysis, the QC was found to be close to (AlMg)82Mn18. The quasilattice constant (aR = 0.4604 nm) of the QC phase suggests that it is basically an Al-Mn type of Mackay quasicrystal, which conforms to the composition analysis. The rationale behind the formation of the Al-Mg-Mn ternary quasicrystal from the T-Al18Mg3Mn2 alloy is discussed.

Original languageEnglish
Pages (from-to)1119-1122
Number of pages4
JournalScripta Materialia
Issue number10
Publication statusPublished - 2008 Nov 1


All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys

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