Theoretical and experimental substantiation of treatment of aluminum-based melts by pulsed magnetic fields
https://doi.org/10.17073/0021-3438-2015-5-11-19
Abstract
Factors causing the solid-phase dispersion of the particles of alloying elements in the aluminum melt depending on their nature are considered. It is shown that the particles can be fragmented under the effect of uniform tensile stresses appearing due to heating the particles. The reasonability of using additional external effects (for example, magnetic-pulsed treatment of the foundry-alloy melt) in order to intensify the assimilation of silicon in liquid aluminum and provision of microcrystalline structure of the foundry alloy is substantiated theoretically and confirmed experimentally by the example of the Al–20wt%Si foundry alloy.
About the Authors
K. V. NikitinRussian Federation
E. A. Amosov
Russian Federation
V. I. Nikitin
Russian Federation
V. A. Glushenkov
Russian Federation
D. G. Chernikov
Russian Federation
References
1. Nappi C. The global aluminium industry 40 years from 1972. World Aluminium, 2013.
2. Improving sustainability in the transport sector through weight reduction and the application of aluminium. URL: http://alcoa.com›global/en/environment/pdf/GTS…final.pdf.
3. Spasskii A.G., Fomin B.A., Oleinikov S.I. Temperaturnaya obrabotka zhidkih metallov i eyo vliyanie na mehanicheskie svoistva otlivok [Thermal treatment of liquid metals and its influence on the mechanical properties of castings]. Liteinoe proizvodstvo. 1959. No. 10. P. 35—37.
4. Ri Hosen, Ri E.H., Himyhin S.N., Kalygin M.E., Statsenko D.P. Vliyanie termoskorosnoi obrabotki rasplava na strukturoobrazovanie i mehanicheskie svoistva otlivok iz alyuminievih splavov [The influence of termo-speed treatment of melt on structure and mechanical properties of castings of aluminum alloys]. Liteishik Rossii. 2010. No. 8. P. 12—14.
5. Deev V.B., Feoktistov A.V., Sel’yanin I.F., Kokolevskii I.V. Opredelenie optimal’nih temperatur peregreva binarnih siluminov po politermam vyazkozti [Determination of the optimal temperature of the overheating binary silumins by polythermal viscosity]. Izvestiya vuzov. Chernaya metallurgiya. 2001. No. 8. P. 62—63.
6. Eskin G.I. Vliyanie kavitatcionnoi obrabotki rasplava na strukturu i svoistva litih i deformirovannih l’ogkih splavov [The influence of cavitation treatment of the melt on the structure and properties of cast and deformed light alloys]. Vestnik RAEN. 2010. No. 3. P. 82—89.
7. Zarembo V.I. Fonovoe rezonansno-akusticheskoe upravlenie geterofaznimi processami [Background resonanceacoustic control of heterophase processes]. Teoret. osnovi him. tekhnologii. 2006. Vol. 49. No. 5. P. 520—532.
8. Ri E.H., Ri Hosen, Dorofeev S.V., Yakimov V.I. Vliyanie oblucheniya zgidkoi fazi nanosekundnimi elektromagnitnimi impul’sami na ee stroenie, processi kristallizacii, strukturoobrazovanie i svoistva liteinih splavov [Effect of irradiation of the liquid phase by nanosecond electromagnetic pulses on its structure, crystallization, structure and properties of casting alloys]. Vladivostok: Dal’nauka, 2008.
9. Glyshchenkov V.A., Chernikov D.G., Nikitin V.I., Nikitin K.V. O vozdeistvii impul’snih magnitnih poleyi na rasplavi [About the effects of pulsed magnetic fields on the melt]. Metallurgiya mashinostroeniya. 2012. No. 4. P. 47—50.
10. Grabovii V.M. Vibor tehnologii elektrogidroimpul’snoyi podgotovki rasplava k zalivke [The choice of technology electrohydraulic-pulsed preparation of the melt to the fill]. Metallurgiya mashinostroeniya. 2009. No. 1. P. 29—34.
11. Napalkov V.I., Mahov S.V. Legirovanie i modificirovanie alyuminiya i magniya [Alloying and modification of aluminum and magnesium]. Moscow: MISIS, 2002.
12. Nikitin V.I., Nikitin K.V. Nasledstvennost’ v litih splavah [Heredity in cast alloys]. Moscow: Mashinostroenie-1, 2005.
13. Timoshenko S.P., Gyd’er G. Teoriya uprugosti [Theory of elasticity]. Moscow: Nauka, 1979.
14. Drits M.E. Svoistva elementov [The properties of the elements: reference edition]. Moscow: Metallurgiya, 1985.
15. Napalkov V.I., Bondarev B.I., Tararishkin V.I., Shyhrov M.V. Ligaturi dlya alyuminievih i magnievih splavov [Master alloys for the production of aluminium and magnesium alloys]. Moscow: Metallurgiya, 1983.
Review
For citations:
Nikitin K.V., Amosov E.A., Nikitin V.I., Glushenkov V.A., Chernikov D.G. Theoretical and experimental substantiation of treatment of aluminum-based melts by pulsed magnetic fields. Izvestiya. Non-Ferrous Metallurgy. 2015;(5):11-19. (In Russ.) https://doi.org/10.17073/0021-3438-2015-5-11-19