Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1559382 | Calphad | 2009 | 7 Pages |
Abstract
The Ni–Pt system is assessed using the CALPHAD method. The four fcc-based phases, i.e. disordered solid solution phase, Ni3Pt–L12, NiPt–L10 and NiPt3–L12, are described by a four-sublattice model. The calculated thermodynamic properties and order/disorder phase transformations are in good agreement with the experimental data. In order to facilitate the assessment, first-principles pseudopotential calculations are also performed to calculate the enthalpy of formation at 0 K, and comparison with the assessed values is discussed. By combining the assessments of Al–Ni and Al–Pt, the Al–Ni–Pt ternary system is assessed within a narrow temperature range, focusing on the fcc-based phases and their phase equilibria with B2 phase.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Xiao-Gang Lu, Bo Sundman, John A˚gren,