The Paton Welding Journal, 2013, №11



2013 №11 (09)

2013 №11 (11)

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The Paton Welding Journal, 2013, #10/11, 75-82 pages

FUNDAMENTALS OF TECHNOLOGY OF ELECTRIC CONTACT SINTERING OF NANOSTRUCTURED METAL-POLYMERIC COATINGS OF TRIBOTECHNICAL PURPOSE

Yu.M. PLESKACHEVSKY¹ and V.A. KOVTUN²

¹Gomel Branch, NASB. 32a, Kirov Str., 246000, Gomel, Belarus
²Gomel Engineering Institute of Ministry of Emergencies of the Republic of Belarus. 35a Rechitsky Avenue, 246023, Gomel, Belarus. E-mail: vadimkov@vandex.ru


Abstract
Model-theoretical approaches to optimization of structure-technological conditions of electrocontact sintering of metal-polymer coatings are presented. It is shown that application of methods for computer simulation of zones of powder composite materials formation based on principles of mesomechanical approach using structural models, adapted to wide range of technological parameter values and properties of powder system initial components, allows determining the dependencies of effect of technological factors and structural peculiarities as well as characteristics of initial components of dispersed powder systems on processes of sintered layer structure formation. At that, consideration of local effect of thermal factors and internal stresses, appearing in process of coating formation, has the defining importance. 4 Ref., 1 Table, 9 Figures.


Keywords: electrocontact sintering, metal-polymer composite coatings, copper matrix, computer simulation, sintering parameters, structure-technological factors, coating formation


Received:                28.02.13
Published:               06.11.13


References
1. Pasovets, V.N., Kovtun, V.A., Pleskachevsky, Yu.M. (2011) Producing, properties and safety of composites based on powder metals and carbon nanostructures. Gomel: BelGUT.
2. Pleskachevsky, Yu.M., Kovtun, V.A., Kirpichenko, Yu.E. (1997) Tribological coatings formed by electrocontact sintering of powder systems. Wear, 203/204, 679-684.
3. Rajchenko, A.I. (1987) Principles of the process of powder sintering by passing of electric current. Moscow: Metallurgiya.
4. Kovtun, V.A., Semenova, T.V., Mihovski, M. (2006) Research of influence of thermal state of metal-polymer powder coatings during electrocontact sintering on their tribological behavior and structure. J. of Materials Sci. and Technology, 14(3), 159-172.

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