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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Computer simulation of up-hill diffusion in ČSN 17 242/P91 welded joint
 Sopoušek, J. ; Million, Bořivoj ; Vřešťál, J.
The DICTRA software is used for simulating diffusion in multiphase diffusion couple ČSN 17242/P91 at temperature ranging 500-1100 C. The examples of calculated phase profiles, activity and concentration profiles of all species at selected condition are shown.
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The Calphad approach to the calculation of ternary and quaternary diagrams, its strength and weakness; application to Ti-V-C, Ti-V-N and Ti-V-C-N
 Kroupa, Aleš
The advantages and limitations of the CALPHAD method for the calculation of multicomponent phase diagrams are demonstrated on simple ternary systems.
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Study and modelling of the gamma and gamma prime phase equilibrium in Ni-Al-Cr-Co system
 Brož, P. ; Buršík, Jiří ; Picha, R.
Several alloys of Ni-Al-Cr-Co system with constant Ni content of 70 at. % were studied after long term annealing at 1173 and 1273 K by means of analytical electron microscopy. The quantitative structural parameters showed good agreement with calculated data obtained by means of the software Thermocalc. Optimization of some thermodynamic parameters was performed.
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Application of first-principles calculations in phase diagram calculations
 Vřešťál, J. ; Houserová, J. ; Friák, Martin ; Šob, Mojmír
Methods for applying first principles calculations results for construction of phase diagrams are discussed. Calculated quantities useful for phase diagram calculations (equilibrium volumes, energy of formation) are compared with experimentally measured ones. New model for complex intermetallic phase (Cr-Fe sigma-phase), presented recently, is compared with existing model of that phase in phase diagram calculation.
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