For the development of new materials with tailored microstructure, mechanical or functional properties understanding of the fundamental mechanisms of solidification is of high importance.
We investigate the solidification of liquid metals using in-situ X-ray diffraction on electromagnetically levitated metallic samples and on rapidly heated metallic glasses. This enables us time- and temperature-resolved access to the phase formation and solid-state transformations. The crystallization kinetics is determined using high-speed video, flash differential scanning calorimetry, and resistivity measurements.
J. Orava, S. Balachandran, X. Han, O. Shuleshova, E. Nurouzi, I. Soldatov, S. Oswald, O. Gutowski, O. Ivashko, A.-C. Dippel, M. v. Zimmermann, Y.P. Ivanov, A.L. Greer, D. Raabe, M. Herbig, I. Kaban, In situ correlation between metastable phase transformation mechanism and kinetics in a metallic glass, Nature Communications 12 (2021) 2839; URL: https://doi.org/10.1038/s41467-021-23028-9
A. Fernandes Andreoli, O. Shuleshova, V.T Witusiewicz, Y. Wu, Y. Yang, O. Ivashko, A.-C. Dippel, M.V. immermann, K. Nielsch, I. Kaban, In situ study of non-equilibrium solidification of CoCrFeNi high-entropy alloy and CrFeNi and CoCrNi ternary suballoys, Acta Materialia 212 (2021) 116880; URL: https://doi.org/10.1016/j.actamat.2021.116880
I. Kaban, K. Khalouk, F. Gasser, J.-G. Gasser, J. Bednarcik, O. Shuleshova, I. Okulov, T. Gemming, N. Mattern, J. Eckert, In situ studies of temperature-dependent behaviour and crystallisation of Ni36.5Pd36.5P27 metallic glass, Journal of Alloys and Compounds 615 (2014) S208-S212; URL: http://dx.doi.org/10.1016/j.jallcom.2013.12.259
