Skip to main content
Modeling of Thermodynamic Properties and Phase Equilibria for the Al-Sm Binary System
Metallurgical and Materials Transactions A
  • Shihuai Zhou, Iowa State University
  • Ralph E. Napolitano, Iowa State University
Document Type
Publication Date
The thermodynamic properties and associated phase equilibria for the Al-Sm binary system are examined, and experimental results regarding the stability of the Al3Sm, Al11Sm3, and Al4Sm intermetallics are incorporated. In the analysis presented, the liquid phase is described using a three-species association model, the intermediate phases are treated as stoichiometric compounds, and the terminal phases are treated as solid solutions with a single sublattice model. In addition to the stable phases, thermodynamic descriptions of the metastable Al11Sm3-α and Al4Sm-γ phases are employed, and both stable and metastable phase equilibria are presented over the full composition range, providing a general model, which is consistent with available experimental data. Metastable liquidus curves are examined with respect to the observed crystallization behavior of amorphous Al-Sm alloys.

This article is from Metallurgical and Materials Transactions A 39 (2008): 502, doi:10.1007/s11661-007-9445-6. Posted with permission.

Copyright 2008 ASM International. This paper was published in Metallurgical and Materials Transactions A, Vol. 39, Issue 3, pp. 502-512 and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.
Copyright Owner
ASM International
File Format
Citation Information
Shihuai Zhou and Ralph E. Napolitano. "Modeling of Thermodynamic Properties and Phase Equilibria for the Al-Sm Binary System" Metallurgical and Materials Transactions A Vol. 39 Iss. 3 (2008) p. 502 - 512
Available at: