Thermodynamic analysis of the hydriding process of Mg–Ni alloys

A consistent set of thermodynamic functions for the Mg–Ni–H system has been developed from experimental data, and the Mg–Ni–H phase diagram has been calculated thermodynamically. The extended ternary solubility of hydrogen in Mg2Ni, the ternary compound phase Mg2NiH4, and the effect of Ni addition o...

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Bibliographic Details
Published in:Journal of alloys and compounds 1999-02, Vol.283 (1-2), p.213-224
Main Authors: Zeng, Kejun, Klassen, T., Oelerich, W., Bormann, R.
Format: Article
Language:English
Subjects:
Applied sciences
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Hydrogenation modelling
Materials science
Metals. Metallurgy
Mg–Ni alloys
Phase diagram calculations
Phase diagrams and microstructures developed by solidification and solid-solid phase transformations
Phase diagrams of metals and alloys
Physics
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Summary:A consistent set of thermodynamic functions for the Mg–Ni–H system has been developed from experimental data, and the Mg–Ni–H phase diagram has been calculated thermodynamically. The extended ternary solubility of hydrogen in Mg2Ni, the ternary compound phase Mg2NiH4, and the effect of Ni addition on the hydrogen solubility in molten magnesium have been modeled thermodynamically. The ternary solid solution phases were extrapolated from the thermodynamic descriptions of the binary edge systems. The thermodynamic functions of the Mg–Ni–H system have been applied to study the hydriding process of Mg–Ni alloys.
ISSN:0925-8388
1873-4669
DOI:10.1016/S0925-8388(98)00902-5