High-Energy Ball-Milling of FeAl₂ and Fe₂Al₅ Intermetallic Systems

Abstract:

In this study, FeAl₂ and Fe₂Al₅ intermetallic alloys were prepared by conventional casting technique. In order to study their structural stability the alloys were subjected to high-energy ball milling process for 1, 2.5, 5 and 10 h. The structural and chemical characterizations were conducted by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and differential scanning calorimetry. After 10 h of milling, the experimental results indicated a phase transformation from FeAl₂-triclinic phase to Fe₂Al₅-ortorrombic structure. This phase transformation is characterized by a change from low to high symmetry systems.

• Periodical: Materials Science Forum (Volume 755)
• Pages: 47-52
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.755.47
• Online since: April 2013
• Authors: J.R. Romero-Romero, J. Luis López-Miranda, Rodrigo Alonso Esparza Muñoz, M.A. Espinosa-Medina, G. Rosas
• Keywords: High-Energy Ball-Milling, Intermetallic Phase, Phase Transition

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