Abstract
Quantitative atomic structure and phase analysis in the titanium aluminide intermetallic system of composition Ti-45Al-7.5Nb-0.5C (at.%) was conducted in situ by use of high-energy X-ray diffraction from a synchrotron and evaluated using the Rietveld method, implementing a model for atomic order in the α-phase which describes the order to disorder transition α2 → α at the eutectoid temperature. The order parameter exhibits unexpected behavior and is entangled with the competition of different kinetic processes.
Original language | English |
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Pages (from-to) | 1145-1148 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 57 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2007 |
Externally published | Yes |
Keywords
- Intermetallic compounds
- Order-disorder phenomena
- Phase transformation kinetics
- Synchrotron radiation
- Titanium aluminides