Liquidus projection of Al-rich corner of the ternary Al-Fe-U system

L. Meshi, A. Munitz

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Microstructures of the solidified Al-Fe-U ternary alloys have been examined using optical and scanning electron microscopy. Phase content and chemical composition of the different phases present was determined by Energy-Dispersive Spectrometry and X-ray diffraction. Differential Scaling Calorimetry was used for analysis of thermal effects accompanied phase transformations in the course of solidification. On the basis of results obtained liquidus projection was constructed for Al-rich corner of the Al-Fe-U system. Two ternary peritectic reactions have been found to occur. It was proposed that 1 ) an ortliorhombic phase UFe2Al10 is formed by ternary peritectic reaction: UAI3 + Al13Fe4 + Al(L) -→ UFe2Al10 within the temperature range of 850-1157 °C; 2) tetragonal phase U2FeAl20 is formed by ternary peritectic reaction: UAI4 + UFe2Al10 + Al (L) -→ U2FeAl20 at a temperature of about 639 °C.

Original languageEnglish
Pages (from-to)2119-2123
Number of pages5
JournalIntermetallics
Volume18
Issue number11
DOIs
StatePublished - 1 Jan 2010

Keywords

  • A. Aluminides
  • A. Intermetallics
  • A. Ternary alloy systems
  • B. Phase diagrams
  • B. Phase transformation
  • F. Diffraction
  • F. Electron microscopy, scanning

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