%0 journal article
%@ 1438-1656
%A Schmoelzer, T., Mayer, S., Sailer, C., Haupt, F., Guether, V., Staron, P., Liss, K.-D., Clemens, H.

%D 2011
%J Advanced Engineering Materials
%N 4
%P 306-311 
%R doi:10.1002/adem.201000263
%T In Situ Diffraction Experiments for the Investigation of Phase Fractions and Ordering Temperatures in Ti-44 at% Al-(3-7) at% Mo Alloys
%U https://doi.org/10.1002/adem.201000263
4 
%X Being a strong β stabilizer, Mo has gained importance as an alloying element for so-called β/γ-TiAl alloys. Intermetallic TiAl-based alloys which contain a significant volume fraction of the body-centered cubic β-phase at elevated temperatures have proven to exhibit good processing characteristics during hot-working. Unfortunately, the effect of Mo on the appearing phases and their temperature dependence is not well known. In this work, sections of the Ti-Al-Mo ternary phase diagram derived from thermodynamic calculations as well as experimental data are presented. The phase transition temperatures stated in these phase diagrams are compared with the results of high-temperature diffraction studies using high-energy synchrotron radiation. Additionally, the disordering temperature of the βo-phase is determined.