Lead activities and ternary miscibility gap in the CuPbFe liquid solutions

The transpiration method was used to measure the lead vapour pressure in liquid Cu-Pb-Fe alloys at the temperature 1723 K. The lead and iron concentration varied from 2.5 to 35 at.pct. Excess Gibbs energy in liquid ternary alloys was calculated from experimental results and literature data for binar...

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Veröffentlicht in:	Calphad 1993, Vol.17 (1), p.1-16
Hauptverfasser:	Onderka, Boguslaw, Wypartowicz, Jan, Hämäläinen, Marko
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Chemical thermodynamics Chemistry Computational methods Computer applications Copper alloys Exact sciences and technology General and physical chemistry Iron alloys Lead alloys Metals and alloys Metals. Metallurgy Pressure measurement Solubility Thermodynamic properties vapour pressure
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Zusammenfassung:	The transpiration method was used to measure the lead vapour pressure in liquid Cu-Pb-Fe alloys at the temperature 1723 K. The lead and iron concentration varied from 2.5 to 35 at.pct. Excess Gibbs energy in liquid ternary alloys was calculated from experimental results and literature data for binary solutions using Redlich-Kister-Muggianu formalism. The liquid miscibility gaps at the temperatures 1600 – 1900 K were determined by means of ThermoCalc program.
ISSN:	0364-5916 1873-2984
DOI:	10.1016/0364-5916(93)90030-F