BURŠÍK, Jiří, Pavel BROŽ and Radim PICHA. Microstructural and phase equilibria study in the Ni-Al-Cr-W system at 1173 and 1273 K. Intermetallics. Netherlands: Elsevier, 2003, vol. 11, No 5, p. 483-490. ISSN 0966-9795.
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Basic information
Original name Microstructural and phase equilibria study in the Ni-Al-Cr-W system at 1173 and 1273 K
Authors BURŠÍK, Jiří (203 Czech Republic), Pavel BROŽ (203 Czech Republic, guarantor) and Radim PICHA (203 Czech Republic).
Edition Intermetallics, Netherlands, Elsevier, 2003, 0966-9795.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10403 Physical chemistry
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 1.619
RIV identification code RIV/00216224:14310/03:00008045
Organization unit Faculty of Science
UT WoS 000182290100012
Keywords in English Nickel aluminides based on Ni3Al; Phase diagram; Phase diagram
Tags Phase diagram
Changed by Changed by: doc. RNDr. Pavel Brož, Ph.D., učo 857. Changed: 21/1/2004 10:00.
Abstract
Several alloys of the Ni-Al-Cr-W quaternary system were prepared and their microstructure was studied quantitatively after long-term annealing at 1173 and 1273 K using scanning and transmission electron microscopy with energy-dispersive X-ray analysis. Thermodynamic modelling of the system was done by means of the Thermo-Calc software package. The thermodynamic parameters for the calculations were taken from commercial database for Ni-base superalloys. Two sections of quaternary phase diagrams at 1173 and 1273 K with constant Ni level of 71 and 76 at.% were discussed. Based on the comparison of our new experimental data with the results of thermodynamic modelling, a necessity of adjustment of some thermodynamic parameters was stated. Two of the interaction parameters describing the Ni-Al-W ternary subsystem were adjusted and better agreement of calculations with experiments was attained.
Links
GA106/02/0876, research and development projectName: Teoretické a experimentální studium modelových soustav na bázi niklu a termodynamický popis fázových rovnováh
Investor: Czech Science Foundation, Theoretical and experimental study of Ni-based model systems and thermodynamic description of phase equilibria
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