Browsing CALPHAD Assessments by Title
Now showing items 1-20 of 103
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Ag-Al Functional Description
(2013-01-31)The energy expressions for GP zones in the Al–Ag binary system, including the ε-state and the η-state ones, are established by combining the essential Gibbs energy for the matrix alloy with the interfacial energy and the ... -
Ag-Au-Cu Atomic mobilities and diffusion characteristics
(2013-04-01)CALPHAD kinetics has evolved to be a well-established discipline, which allows complex non-equilibrium processes to be fully explored. Such a success relies on the use of Redlich–Kister polynomials to describe atomic ... -
Ag–Cd and Ag–Sn diffusion and atomic mobilities
(2013-07-08)Diffusion in Ag-based solders is a practical topic that has attracted world-wide attention. With the available experimental data in the literature, the atomic mobilities of Ag, Cd and Sn in fcc Ag–Cd and Ag–Sn alloys are ... -
Ag–Zn diffusional mobilities
(2013-03-30)Based on the available thermodynamic information and diffusion coefficient data of the Ag–Zn binary system, the atomic mobilities of Ag and Zn in face-centred cubic (fcc) Ag–Zn alloys have been assessed as a function of ... -
Al-Cr-Ni Thermodynamic Re-Assessment of the Ternary System
(2013-01-31)A re-assessment of the ternary system A1-Cr-Ni following Dupin's thesis work using a single Gibbs energy function for the gamma and gamma prime phases is presented taking into account new experimental liquidus temperatures. ... -
Al-Cr-Ti Assessment of diffusion mobility for the bcc phase
(2013-04-01)Experimental diffusion data in the literature were critically assessed to develop the diffusion mobility for the bcc phase of the Ti–Al–Cr system by means of a DICTRA-type (Diffusion Controlled Transformation) diffusion ... -
Al-Cr-Ti–V Thermodynamic assessment of the ordered B2 phase
(2013-03-29)Thermodynamic assessment of the ordered B2 phase in the quaternary Ti–V–Cr–Al system is carried out. A set of self-consistent thermodynamic parameters is presented. A two-sublattice model (Al,Cr,Ti,V )0.5: (Al,Cr,Ti,V )0.5 ... -
Al-Cu-Fe Interdiffusivities and atomic mobilities
(2013-04-01)Using solid/solid diffusion couples and the electron probe microanalysis (EPMA) technique, the interdiffusion coefficients in fcc Cu–Al–Fe alloys at 1273 K were determined by means of Whittle and Green’s method. Based on ... -
Al-Cu-Y Thermodynamic description
(2013-04-01)Phase equilibria in the ternary Al–Cu–Y system have been analyzed by coupling the CALPHAD method and first-principles calculations, and a complete thermodynamic description was obtained. The thermodynamic descriptions of ... -
Al-Fe Thermodynamic Assessment
(2013-03-28)The Al–Fe system is important for many alloys and the new interest in iron aluminides makes it necessary to improve the modeling of the different ordered forms on the body-centered cubic lattice in this system. This has ... -
Al-Li-Zn Thermodynamic description
(2013-03-29)The Al–Li–Zn system was critically assessed using the CALPHAD technique. The solution phases (liquid, bcc, fcc and hcp) were described by the substitutional solution model. The compounds Al2Li3 and Al4Li9 in the Al–Li ... -
Al-Mg COST 507 Thermochemical database for light metal alloys
(1998-07)Bearing in mind the alloy categories defined by industrial partners at the beginning of the Action, a matrix was drawn up to define the binary systems forming the building blocks for the evaluation of higher-order systems. ... -
Al_Cr_Ni Diffusion Mobilities in Gamma Prime and B2
(2013-02-11)This work presents the assessment of the diffusion mobilities in both the γ′ (Ni3Al-L12) and B2 (NiAl) phases in the Ni–Al–Cr system utilizing the phenomenological model developed by Helander and Ågren. Available experimental ... -
Alkali metals thermodynamic assessments of six binary systems
(2013-03-30)Among the phase diagrams of six binary systems composed of alkali metals, Sodium (Na), Potassium (K), Rubidium (Rb) and Cesium (Cs), three of them, those of the Cs–K, Cs–Rb and K–Rb systems, indicate a complete range of ... -
AlTaTi
In the present paper a thermodynamic description of the entire ternary Al–Ta–Ti system is proposed, being obtained by CALPHAD modelling. Dedicated experiments were performed in order to complement literature data on phase ... -
The Al–Fe–Mn system revisited—An updated thermodynamic description using the most recent binaries
The so-called TWinning Induced Plasticity (TWIP) steels have gained a lot of attention in the last couple of years due to their excellent mechanical properties; they show very high strength and are at the same time very ... -
Al–Pt First-principles calculations and thermodynamic modeling
(2013-03-29)Thermodynamic description of the Al–Pt binary system is modeled by combining first-principles calculations with the CALPHAD method. The four-sublattice and two-sublattice compound energy formalisms are used to model the ... -
Assessment of diffusion mobility for the bcc phase of the Ti–Al–Cr system
Experimental diffusion data in the literature were critically assessed to develop the diffusion mobility for the bcc phase of the Ti–Al–Cr system by means of a DICTRA-type (Diffusion Controlled Transformation) diffusion ... -
Assessment of the Re–Ta binary system
Using the CALPHAD method, the thermodynamic properties of each phase of the Re–Ta system were optimized using the experimental information on the phase diagram and the thermochemical quantities. A consistent set of parameters ... -
Au, Cu, Pd and Pt alloys Mobilities and diffusivities
(2013-03-29)Based on the CALPHAD technique, the atomic mobilities and diffusivities in fcc Fe–X (X=Ag, Au, Cu, Pd and Pt) alloys have been critically studied. The thermodynamic descriptions and various types of diffusivities are ...