Microstructure and phase equilibria in the Ni-Al-W system

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Authors

POPOVIČ Jiří BROŽ Pavel BURŠÍK Jiří

Year of publication 2008
Type Article in Periodical
Magazine / Source Intermetallics
MU Faculty or unit

Faculty of Science

Citation
Field Physical chemistry and theoretical chemistry
Keywords Nickel aluminides based on Ni3Al; heat treatment; phase diagram prediction (including CALPHAD); scanning electron microscopy; transmission electron microscopy transmission
Description The Ni-Al-W system was studied experimentally and theoretically at temperatures 1173, 1273 and 1373 K in region of gamma, gamma' and alpha phase existence and new experimental results were obtained. Thermodynamic calculations were done using software package Thermo-Calc. The experimental data were confronted with calculated results obtained using commercial database for Ni-based superalloys. The thermodynamic description was optimized and very good agreement of experimental information with theory was obtained.
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