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Metals 2012, 2(3), 377-398; doi:10.3390/met2030377

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 / Revised: 20 August 2012 / Accepted: 21 August 2012 / Published: 14 September 2012
(This article belongs to the Special Issue Magnesium Technology)
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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. View Full-Text
Keywords: multicomponent simulation; computational thermodynamics; phase formation multicomponent simulation; computational thermodynamics; phase formation
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Schmid-Fetzer, R.; Gröbner, J. Thermodynamic Database for Mg Alloys—Progress in Multicomponent Modeling. Metals 2012, 2, 377-398.

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