Thermodynamic Properties of Eutectic Silumins Doped by Transition Metals

The thermodynamic properties of the liquid silumins (Al Si Tr , where Tr = Cu, Fe, Ni and Ti, have been measured, using the electromotive force method at 1040 K. It has been found that diluted solutions of Fe or Ni in eutectic silumins at Tr molar fractions of 0 < x ≤ 0.035 and 0 < x ≤ 0.027 a...

Full description

Saved in:
Bibliographic Details
Published inZeitschrift für Naturforschung. A, A journal of physical sciences Vol. 59; no. 4; pp. 288 - 290
Main Authors Kanibolotsky, D. S., Stukalo, V. A., Lisnyak, V. V.
Format Journal Article
LanguageEnglish
Published Verlag der Zeitschrift für Naturforschung 01.05.2004
Subjects
Al-Si-(Cu
Electromotive Force Method
Gibbs Energy
Liquid Alloys
Silumins
Thermodynamic Activity
Ti
Online AccessGet full text

Cover

More Information
Summary:The thermodynamic properties of the liquid silumins (Al Si Tr , where Tr = Cu, Fe, Ni and Ti, have been measured, using the electromotive force method at 1040 K. It has been found that diluted solutions of Fe or Ni in eutectic silumins at Tr molar fractions of 0 < x ≤ 0.035 and 0 < x ≤ 0.027 are characterized by positive deviations from ideality for aluminium. However, the deviations become negative at increasing of the Tr concentration. However, molten silumins doped by Ti and Cu show negative deviations from Raoult’s law for aluminium at the studied concentrations. Thermodynamic activity of Al in the silumins decreases in the sequence of Fe→Ni→Cu→Ti for the dopants.
ISSN:0932-0784
1865-7109
DOI:10.1515/zna-2004-4-514