%0 journal article %@ 1359-6462 %A Yeoh, L.A.,Liss, K.D.,Bartels, A.,Chladil, H.,Avdeev, M.,Clemens, H.,Gerling, R.,Buslaps, T. %D 2007 %J Scripta Materialia %N 12 %P 1145-1148 %R doi:10.1016/j.scriptamat.2007.08.021 %T In-Situ High Energy X-Ray Diffraction Study and Quantitative Phase Analysis in the Alpha + Gamma Phase Field of Titanium Alumindes %U https://doi.org/10.1016/j.scriptamat.2007.08.021 12 %X 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.