| Production of TiFe nanocrystalline intermetallic compound by means of high-energy ball milling process |
| Paper ID : 2407-UFGNSM13-FULL |
| Authors: |
|
Seyed Farshid Kashani-Bozorg College of Engineering-School of Metallurgy-University of Tehran-Tehran-Iran |
| Abstract: |
| Two powder mixtures with stoichiometric compositions of TiFe and TiFe0.9Nb0.1 were subjected to high energy ball milling using a planetary ball mill under an argon atmosphere at ambient temperature for periods of to 60 h. XRD results demonstrated that the nano-structured TiFe intermetallic compound was formed after only 10 h of milling in the binary stoichiometric composition. Addition of Nb led to enhance the formation kinetic TiFe structure. The volume fraction of TiFe was found to increase with increasing milling time in both binary and ternary milled products. In addition, substantial elemental Fe was remained in the milled product even after 60 h. Detailed microstructural investigation of the milled products revealed micron-sized agglomerated particles consisting of several interlocked nano-crystals with a mean size of ~20 nm. |
| Keywords: |
| Mechanical alloying, TiFe intermetallic compound, nanostructured materials, Nb addition. |
| Status : Paper Accepted (Poster Presentation) |
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