Zhehao Qu, Zhenzhi Liu, Yan Zhao, Genfeng Shang, Wei Feng
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引用次数: 0
Abstract
In the present work, the thermodynamic assessment of the U-Ti-Zr ternary system was performed by using the CALPHAD (Calculation of Phase Diagrams) method based on phase diagram data as well as the reliable thermodynamic descriptions of the U-Ti, U-Zr, and Ti-Zr binary systems. The calculated isothermal sections and vertical section of the U-Ti-Zr system are in good agreement with the experimental results. Subsequently, based on the available experimental diffusion data, the atomic mobility parameters of the U-Ti binary system were assessed by means of DICTRA software. The calculated interdiffusion coefficients and composition profiles of the bcc U-Ti alloys are consistent with the experimental data. On this basis, the kinetic database of the bcc U-Ti-Zr alloys was constructed by extrapolation in combination with reliable atomic mobility parameters of the U-Zr and Ti-Zr binary sub-systems from the literature.
期刊介绍：
The most trusted journal for phase equilibria and thermodynamic research, ASM International''s Journal of Phase Equilibria and Diffusion features critical phase diagram evaluations on scientifically and industrially important alloy systems, authored by international experts.
The Journal of Phase Equilibria and Diffusion is critically reviewed and contains basic and applied research results, a survey of current literature and other pertinent articles. The journal covers the significance of diagrams as well as new research techniques, equipment, data evaluation, nomenclature, presentation and other aspects of phase diagram preparation and use.
Content includes information on phenomena such as kinetic control of equilibrium, coherency effects, impurity effects, and thermodynamic and crystallographic characteristics. The journal updates systems previously published in the Bulletin of Alloy Phase Diagrams as new data are discovered.
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