Microstructure and Solidification of Al-Fe-(V, Si) Alloy Powders

Ruangdaj Tongsri, Richard Dashwood, Henry Mcshane

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Gas-atomised powders of Al-Fe-(V, Si) alloys exhibited microstructures consisting of cells and/or some forms of icosahedral phase. The forms of icosahedral phase include irregular shaped aggregates of ultrafine spherical micro-quasicrystalline (MI) particles in α-aluminium phase matrix, ultrafine MI particles in intercellular regions, and globular clusters of randomly oriented MI particles (in medium to coarse size Al- Fe-V alloy powders) or globular particles of single icosahedral phase (in medium to coarse size Al-Fe-V-Si alloy powders). It has been proposed that solidification behavior of the Al-Fe-(V, Si) alloy powders would be attributed to a competition between growth of α-aluminium phase fronts and freely nucleated icosahedral particles. Interactions between the solidification fronts and dispersed particles, influenced by solidification rates, would control microstructural morphology.

Original languageEnglish
Pages (from-to)33-41
Number of pages9
Issue number1
Publication statusPublished - 2004
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2004 Science Society of Thailand under Royal Patronage. All rights reserved.


  • gas-atomised powders. Al-Fe-(V
  • microstructure
  • Si) alloys.
  • solidification

ASJC Scopus subject areas

  • General


Dive into the research topics of 'Microstructure and Solidification of Al-Fe-(V, Si) Alloy Powders'. Together they form a unique fingerprint.

Cite this