3D computer models reference book “T-x-y diagrams of oxide systems”
The Reference Book of ternary systems phase diagrams computer models for molybdenum and tungsten compounds is presented. Its models give a possibility to calculate the mass balances in any temperature intervals, to observe crystallization history and the process of microstructure forming at different crystallization stages.
Computer models of eutectic-type T-x-y diagrams with allotropy Two inner liquidus fields of two low-temperature modifications of the same component
Using the eutectic-type T-x-y diagram as an example, it can be represented the analysis of its geomet- rical construction dependence on the temperature of a component two polymorphous modifications which par- ticipate in mono- and invariant metatectic and invariant eutectic (eutectoid) transformations above or below (and within) binary eutectics temperature intervals and below a ternary eutectic temperature. Computer models for con- sidered phase diagrams have been designed. Such models help to solve applied tasks like visualization, isopleths and isothermal sections decoding, mass balances calculation and evaluation of phase and conglomerate concentration in microstructure.
Parametric and matrix algorithms for calculating heterogeneous states in systems with an incongruently melting binary compound
A matrix description of the crystallization process is proposed, according to which all transformations of a melt can be presented as a set of products of the matrices of phase compositions and the vectors comprised of the mass fractions of the phases. It was demonstrated that this approach is simpler, more illustrative, and more versatile in predicting the microstructure of heterogeneous materials compared to the traditional methods of solving the problems involving center-of-mass determination. An algorithm for calculating the characteristics of two-phase equilibria based on parametric equations of its boundaries in isobaric-isothermic sections is given.