NDLI: Solid-liquid phase equilibria in the Al-Fe-Si system at 727 °C

Content Provider	Springer Nature Link
Author	Pontevichi, S. Bosselet, F. Barbeau, F. Peronnet, M. Viala, J. C.
Copyright Year	2004
Abstract	Different experimental techniques were combined to acquire better insight into the solid-liquid phase equilibria that tend to be established in the Al-Fe-Si ternary system at 727 °C under a pressure of 1 atm (101,350 Pa). Isothermal diffusion experiments followed by oil quenching were first carried out. The crystal nature, lattice parameters, morphology, and chemical composition of the different solid phases in equilibrium with the liquid were determined by x-ray diffraction, optical microscopy, scanning electron microscopy, and electron probe microanalysis. Points on the liquidus boundary were then positioned both directly by chemical analysis of liquid samples taken from solid-liquid mixtures equilibrated at 727 °C and indirectly by thermal analysis of Al-Si mixtures with controlled iron additions. On the one hand, it has been confirmed in agreement with currently accepted data that the compounds ϑAl$_{13}$Fe$_{4}$, αAl$_{7.4}$Fe$_{2}$Si (τ$_{5}$), and δAl$_{3}$FeSi$_{2}$ (τ$_{4}$) are in equilibrium at 727 °C with Al-Fe-Si liquids, the compositions of which have been refined. On the other hand, the authors have shown that the ternary compound γAl$_{3}$FeSi is in equilibrium at 727 °C with a ternary Al-Fe-Si liquid containing 10.5 to 16.5 at.% Si and 3.2 to 3.5 at. % Fe.
Starting Page	528
Ending Page	537
Page Count	10
File Format	PDF
ISSN	15477037
Journal	Journal of Phase Equilibria and Diffusion
Volume Number	25
Issue Number	6
e-ISSN	18637345
Language	English
Publisher	Springer-Verlag
Publisher Date	2004-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Crystallography Thermodynamics Materials Science Engineering Thermodynamics, Transport Phenomena Ceramics, Glass, Composites, Natural Methods Metallic Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Metals and Alloys Condensed Matter Physics

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