Author/Authors :
Mattern، نويسنده , , N. and Han، نويسنده , , J.H. and Fabrichnaya، نويسنده , , O. and Zinkevich، نويسنده , , M. and L?ser، نويسنده , , W. and Werner، نويسنده , , J. and Nowak، نويسنده , , R. and Kaban، نويسنده , , I. and Shuleshova، نويسنده , , O. and Holland-Moritz، نويسنده , , D. and Bednar?ik، نويسنده , , J. W. Sobczak، نويسنده , , N. and Eckert، نويسنده , , J.، نويسنده ,
Abstract :
The 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.
Keywords :
phase diagram , Thermodynamic assessment , X-ray diffraction , CALPHAD , Gd–Ti
