Experimental and thermodynamic assessment of the Gd–Ti system
2013; Elsevier BV; Volume: 42; Linguagem: Inglês
10.1016/j.calphad.2013.06.007
ISSN1873-2984
AutoresN. Mattern, Jun Han, Olga Fabrichnaya, M. Zinkevich, W. Löser, J. Werner, R. Nowak, I. Kaban, O. Shuleshova, D. Holland‐Moritz, Jozef Bednarčík, N. Sobczak, J. Eckert,
Tópico(s)Metallurgical and Alloy Processes
ResumoThe phase equilibria of the binary Gd–Ti system were studied by combining electrostatic levitation of the melt with high energy synchrotron in situ X-ray diffraction at elevated temperatures. The coexistence of the phases including the liquid was directly proven in the temperature range between T=1000 and 1920 K. The Gd–Ti system is of monotectic type characterized by a miscibility gap in the liquid state above the monotectic temperature T=1841±5 K. Together with experimental data from thermo-analysis and microstructure investigation of as-cast samples an improved Gd–Ti phase diagram is presented and a thermodynamic description is derived.
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