Experimental study of phase equilibria and solidification microstructures of Mg-Ca-Ce alloys combined with thermodynamic modeling

Thermodynamic descriptions of binary Ca-Ce and ternary Mg-Ca-Ce systems were generated using the Calphad method. Complementary experimental study of phase equilibria and solidification microstructures was done using metallography, scanning electron microscope with energy dispersive X-ray microanalys...

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Bibliographic Details
Published in:Journal of materials science 2007-12, Vol.42 (24), p.10023-10031
Main Authors: HAMPL, Milan, GROBNER, Joachim, SCHMID-FETZER, Rainer
Format: Article
Language:English
Subjects:
Alloys
Calcium
Chemical precipitation
Computer simulation
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Magnesium
Magnesium base alloys
Materials science
Mathematical models
Metallography
Microstructure
Other topics in materials science
Phase equilibria
Phase transitions
Physics
Scanning electron microscopy
Solid phases
Solidification
Thermodynamic equilibrium
Thermodynamic models
Thermodynamics
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Summary:Thermodynamic descriptions of binary Ca-Ce and ternary Mg-Ca-Ce systems were generated using the Calphad method. Complementary experimental study of phase equilibria and solidification microstructures was done using metallography, scanning electron microscope with energy dispersive X-ray microanalysis and differential scanning calorimetry. The microstructures of these Mg-rich alloys formed during slow solidification and the type and sequence of solid phase precipitation compares well with thermodynamic equilibrium and non-equilibrium calculations.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-007-2002-2