Influence of structure state of melt on solidification process

• Autorzy: Mudry S. , Prokhorenko V. , Prokhorenko S. , Bojar Z.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

metallic alloys; structure; solidification

PL

stopy metali; struktura; krzepnięcie

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2006
• Tom: Vol. 18, nr 1-2
• Strony: 159--162
• Opis fizyczny: Bibliogr. 7 poz., wykr.

Twórcy

autor

Mudry S.

• Physics of Metals Department, Ivan Franko Lviv National University, 8 Kyrylo and Mephodyi St., Lviv, 290005, Ukraine

autor

Prokhorenko V.

• Physics of Metals Department, National University „Lvivska Politechnika“, 12 Bandera St., Lviv, 290646, Ukraine
• Information Measurement Technologies Department, National University „Lvivska Politechnika“, 12 Bandera St., Lviv, 290646, Ukraine

autor

Prokhorenko S.

• Information Measurement Technologies Department, National University „Lvivska Politechnika“, 12 Bandera St., Lviv, 290646, Ukraine

autor

Bojar Z.

• Institute of Materials Technology and Applied Mechanics, Military University of Technology (WAT), Kaliskiego 2, Warsaw 00-908, Poland

Bibliografia

• [1] S. Prokhorenko, W. Prokhorenko, S. Mudry, A. Bylica, J. Navotska. Structure of a melt, thermal and ultrasonic properties during gallium alloys crystallization. /J. Archives of Foundry, 2004, v.4, 11, p.123-130.
• [2] S. Prokhorenko, V. Prokhorenko, S. Mudry, W. Halczak, A. Panas The effect of outside energetic treatment on the process of crystallization analyzes analyzed by AE-method and on the stabilization of melting plateau. // Proceedings of 12th Int.Sci.Conf. AMME - Gliwice. - 2003.
• [3] Metallurgical & Materials Transactions A: Mid-March 2003 (Print Format), Editor: David E. Laughlin.
• [4] V. Prokhorenko, S. Mudry, S. Prokhorenko, V. Halchak. New complex of experimental methods in studying of crystallization in metallic systems. // Proceedings of 7th Int.Sci.Conf. AMME - Gliwice. - 1998. - P. 431-434
• [5] L.A. Dobrzański, E. Hajduczek, J. Marciniak and R. Nowosielski, Physical metallurgy and heat treatment of tool materials, WNT, Warsaw, 1990, (in Polish).
• [6] Binary Alloy Phase Diagrams, Vol. 1, (Edited by B.T. Massalski), American Society for Metals, 1986.
• [7] T.A.M. Haemers et al. Simulation of solidification structures of binary alloys: a multi-particle diffusion-limited aggregation model with surface rearrangement 1999 Modelling Simul. Mater. Sci. Eng. 7 233-252