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Experimental investigation and thermodynamic calculation of the Al–Mg–Zn system
On the basis of a critical assessment, experimental investigations by EPMA on ternary Al–Mg–Zn alloys were specifically performed to provide missing data of the ternary solubilities of the Al–Mg and Mg–Zn phases as well as to improve the knowledge of the extensions of the homogeneity ranges of the t...
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Published in: | Thermochimica acta 1998-04, Vol.314 (1), p.87-110 |
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Main Authors: | , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | On the basis of a critical assessment, experimental investigations by EPMA on ternary Al–Mg–Zn alloys were specifically performed to provide missing data of the ternary solubilities of the Al–Mg and Mg–Zn phases as well as to improve the knowledge of the extensions of the homogeneity ranges of the ternary τ- and Φ-phases. A thermodynamic description for the Al–Mg–Zn system was obtained taking into account those experimental data together with constitutional, thermodynamic and crystallographic literature information. The binary intermetallic phases are modelled to have ternary solubilities. The ternary τ-phase is modelled according to its crystal structure with cubic symmetry as (Mg)
26(
Mg, Al)
6(
Al,
Zn, Mg)
48(Al)
1 in the compound-energy-formalism. The Φ-phase is described by the sublattice formula Mg
6(
Al,
Zn)
5. |
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ISSN: | 0040-6031 1872-762X |
DOI: | 10.1016/S0040-6031(97)00458-9 |