Influence of structure state of melt on solidification process

Purpose: This work is to establish the physical foundation for searching of new possibilities to improve the properties of metallic alloys by effecting of them in liquid state,- the experimental data on structure of binary alloys with various kind of phase diagram are analyzed. The importance of treatment in liquid state is motivated by existence of inhomogeneous structure in wide temperature range. Analysis of temperature dependencies of structure parameters and physical properties allow to suppose that factors of energetic influence (magnetic field for example) can effect the solidificated alloys not only at phase transitions but also at higher temperatures. In order to choose the influence parameters the information about structure and physical properties temperatures dependences is needed. Design/methodology/approach: The experimental studies on structure of metallic alloys were carried out by means of X-ray diffraction method and physical properties measurements, devices were constructed to study the influence of magnetic field on alloys structure and solidifications process. Findings: Metallic alloys show the structure inhomogeneities in liquid state within wide temperature range, besides the thermodynamic and kinetic solidification process,- conditions responsible for the structure and properties of solidificated alloys significantly depend on structural state of melt before crystallization. Research limitations/implications: The purpose of this paper is bound also to the metallurgical and metrology (build-up eutectic temperature fixed-point cells) problems solutions,- finding of new ways of the check and controlling of process of crystallization of this metal alloys. Originality/value: Using of magnetic field and other energetic influence can change inhomogeneous structure in order to improve the properties of alloys.