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Thermodynamic Database for Mg Alloys—Progress in Multicomponent Modeling
Institute of Metallurgy, Clausthal University of Technology, Robert-Koch-Str. 42, D-38678 Clausthal-Zellerfeld, Germany
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Received: 2 July 2012; in revised form: 20 August 2012 / Accepted: 21 August 2012 / Published: 14 September 2012
Abstract: Progress in systematic development of a thermodynamic database for Mg alloys with 21 components is reported. Models for multicomponent alloys are built in a methodical approach from quantitative descriptions of unary, binary and ternary subsystems. For a large number of ternary—and some higher—alloy systems, an evaluation of the modeling depth is made with concise reference to experimental work validating these thermodynamic descriptions. A special focus is on ternary intermetallic phase compositions. These comprise solutions of the third component in a binary compound as well as truly ternary solid solution phases, in addition to the simple ternary stoichiometric phases. Concise information on the stability ranges is given. That evaluation is extended to selected quaternary and even higher alloy systems. Thermodynamic descriptions of intermetallic solution phases guided by their crystal structure are also elaborated and the diversity of such unified phases is emphasized.
Keywords: multicomponent simulation; computational thermodynamics; phase formation
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Schmid-Fetzer, R.; Gröbner, J. Thermodynamic Database for Mg Alloys—Progress in Multicomponent Modeling. Metals 2012, 2, 377-398.
Schmid-Fetzer R, Gröbner J. Thermodynamic Database for Mg Alloys—Progress in Multicomponent Modeling. Metals. 2012; 2(3):377-398.
Schmid-Fetzer, Rainer; Gröbner, Joachim. 2012. "Thermodynamic Database for Mg Alloys—Progress in Multicomponent Modeling." Metals 2, no. 3: 377-398.