Modeling of thermodynamic properties and phase equilibria for the Al-Sm binary system
| Title | Modeling of thermodynamic properties and phase equilibria for the Al-Sm binary system |
| Publication Type | Journal Article |
| Year of Publication | 2008 |
| Authors | Zhou SH, Napolitano RE |
| Journal Title | Metallurgical and Materials Transactions A-Physical Metallurgy and Materials Science |
| Volume | 39A |
| Pages | 502-512 |
| Date Published | 03 |
| Type of Article | Article |
| ISBN Number | 1073-5623 |
| Accession Number | ISI:000253133500003 |
| Keywords | aluminum, amorphous-alloys, ASSOCIATION MODEL, CERIUM, CRYSTALLIZATION, ENTHALPIES, intermetallic compounds, la, liquid alloys, MOLAR, PSEUDOPOTENTIALS |
| Abstract | 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-alpha and Al4Sm-gamma 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. |
| DOI | 10.1007/s11661-007-9445-6 |
| Alternate Journal | Metall. Mater. Trans. A-Phys. Metall. Mater. Sci. |
