The melt spreading along the substrate surface in the course of SHS surfacing

• Autorzy: Yukhvid A. V. , Stolin A. M. , Yukhvid V. I. , Stelmakh L. S.
• Języki publikacji: EN

Abstrakty

EN

The role of spreading during SHS surfacing of the protective coatings has been investigated theoreticaly and experimentally. The case, when spreading of large drops is forced by the effect of gravity and the interface forces are low, is considered. Analytical and numeric solutions of the problem have shown that the ratio of the specific times of cooling and spreading is the main parameter, which determines the dynamics and the final characteristics of spreading. It has been shown that the process of spreading is most strongly affected by the initial melt mass and drop size, the activation energy of viscosity, and gravitation (microgravitation and overload) within these specific times. The experimental research into SHS surfacing has confirmed the theoretical data.

Słowa kluczowe

EN

self-propagating high-temperature synthesis; combustion; spreading; protective inorganic coatings

PL

materiałoznawstwo; spalanie; powłoka ochronna; synteza wysokotemperaturowa

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2001
• Tom: Vol. 6, no. 1
• Strony: 107--116
• Opis fizyczny: Bibliogr. 16 poz., wykr.

Twórcy

autor

Yukhvid A. V.

• Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences 142432, Chernogolovka, Moscow region, RUSSIA

autor

Stolin A. M.

• Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences 142432, Chernogolovka, Moscow region, RUSSIA

autor

Yukhvid V. I.

• Institute of Structural Macrokinetics and Materials Science Russian Academy of Sciences 142432, Chernogolovka, Moscow region, RUSSIA

autor

Stelmakh L. S.

• Institute of Problems of Chemical Physics Russian Academy of Sciences 142432, Chernogolovka, Moscow region, RUSSIA

Bibliografia

• [1] Bulaev A.M., Galchenko Y.A., Yukhvid V.I., Borovinskaya I.P. and Merzhanov A.G. (1986): Research of cast coatings of a titanium chromium Carbide. - Izv. Acad. Nauk SSSR, Metals, vol.5, pp. 172-182.
• [2] Bykhovsky A.I. (1983): Spreading. - Naukova Dumka, Kiev, pp.1-191.
• [3] Kachin A.R., Sinev S.P., Yukhvid V.I., Kustova L.V. and Borovinskaya I.P (1988): Regularities and mechanism of SHS hardfacing. - Preprint ISMAN, Chernogolovka.
• [4] Merzhanov A.G. (1990): Self-propagating high temperature synthesis: Twenty years of search and findings, In proc. Combustion and Plasma Synthesis of High-Temperature Materials, (Z.A. Munir and J.B. Holt, Ed.) - New York: pp.1-53.
• [5] Merzhanov A.G. and Borovinskaya I.P. (1972): Self-propagating high-temperature synthesis of refractory inorganic compounds. - Doki. Akad. Nauk. SSSR, vol.204, No.2, pp.366-369.
• [6] Merzhanov A.G. and Yukhvid V.I. (1990): The self - propagating high temperature synthesis in the field o f centrifugal forces. - Proc. First US - Japanese Workshop on combustion Synthesis, Tokyo, Japan, pp.1-22.
• [7] Merzhanov A.G., Shkiro V.M. and Borovinskaya I.P. (1967): Method o f synthesis of refractory inorganic compounds. - USSR Inventor’s Certificate, 255221.
• [8] Popel S.I. (1994): The superficial phenomena in melts. - Moscow, Metallurgy, pp.247-321.
• [9] Trofimov A.I. and Yukhvid V.I. (1993): SHS surfacing in an electromagnetic field. - Int. J. SHS, vol.2, No.4, pp.343-348.
• [10] Vishnyakova G.A., Yukhvid V.I., Borovinskaya I.P. and Merzhanov A.G. (1984): Features of microstructure formation for cast titanium chromium SHS coatings with nickel binder. - In abstracts of 1 Symposium on macrokinetics and Chemical gas dynamics, Chernogolovka, vol.l, pp.137-138.
• [11] Yukhvid V.I. (1980): Regularities of phase separation in metallothermic processes. - Izv. Acad. Nauk SSSR, Metals, vol.6, pp.61-64.
• [12] Yukhvid V.I. (1988): Dynamic interaction high-temperature multiphase melt with a metal basis. - Izv. Acad.Nauk SSSR, Metals, vol.6, pp. 130-135.
• [13] Yukhvid V.I. (1991): SHS - surfacing technology, structure and properties. – In Proceeding of the Second East-West Symposium on Materials and Processes, Helsinki, pp.212.
• [14] Yukhvid V.I. (1992): Modification of SHS - processes. - Pure and Appl. Chem., vol.64, No.7, pp.977-988.
• [15] Yukhvid V.I., Baranov M.Z., Borovinskaya I.P. and Merzhanov A.G. (1977): Research on possibility of wear resistance refractory Carbide coating obtained by SHS hardfacing method. - Report of department ICP Akad. Nauk. SSSR, Chernogolovka.
• [16] Yukhvid V.I., Vishnyakova G.A., Silyakov S.L., Sanin V.N. and Kachin A.R. (1996): Structural Macro - Kinetics o f Alumothermic SHS Processes. — Int. J.SHS vol.l, No.l, pp.93-105.