ACTORS INFLUENCING ON A DISTRIBUTION OF VANADIUM PARTICLES IN Cu-V CAST COMPOSITES, OBTAINED BY OF THE ELECTRON-BEAM CASTING TECHNOLOGY
Procesi littâ, 2023, Vol 3 (153), 61-74
DOI:
https://doi.org/10.15407/plit2023.03.061Keywords:
Cu-V alloys, as-cast composites, electron beam casting technology, mathematical and computer modelingAbstract
In recent years, the world has raised interest in production of structural and functional materials with increased operational properties. In particular, an important technological direction is the creation of cast composite materials. An example of this is vanadium-hardened copper. Such a composite has almost the same electrical conductivity as pure copper, but is characterized by much higher strength and creep resistance. At the same time, the production of such and similar materials is a complex technological problem, therefore electron-beam casting technology was chosen to solve it. This method ensures the best preparation of melts of the Cu-V system. However, their casting and subsequent crystallization require studies of technological parameters in order to ensure the smallest size and the most uniform distribution of reinforcing particles. Thus, using the methods
of mathematical and computer modeling, the changes of studied system cast composites thermal state of castings was investigated, depending on the chemical composition and temperature of the melt. The theoretical dependences of the vanadium particles distribution in copper castings during pouring and cooling were studied. It was found, that convective flows under the condition of
filling in the center in cylindrical castings lead to the movement of particles until the moment of their solidification along a spiral trajectory relative to the axis of the casting with a change in direction, depending on the configuration of the temperature fields. The speed of crystallization is of primary importance, since during prolonged cooling, spiral convective flows are replaced by longitudinal
vertical flows along the axial center of the casting, as in the field with the highest temperature. It was also investigated, that most uniform deposition of V particles may be obtained due to its low concentration around 0.5 wt. %.
References
Dimitrijevic, S., Parezanin, V. and Camberovic, Z., 2018. Design of anti-tarnish sterling silver Ag–Cu–Zn alloy and investigation of silicon addition influence on mechanical and corrosion characteristics. Chemical Industry & Chemical Engineering Quarterly, vol. 3, no. 24, pp. 53–58. doi: 10.2298/CICEQ170660038D.
Metal Prices. Available at <https://www.dailymetalprice.com/> (2021).
Xinghai, Sh., 2021. Research on the preparation method, microstructure and performance of hard silver plated/Cu-Cr0.6-Zr0.02 alloy contact. Materials Research Express, no. 8. doi: 10.1088/2053-1591/abe254.
Korneva, A., Straumal, B. and Kilmametov, A. et al., 2019. Dissolution of Ag Precipitates in the Cu–8wt.%Ag Alloy Deformed by High Pressure Torsion. Materials, vol. 3, no. 12. doi: 10.3390/ma12030447.
Likhatskyi, R. F. and Likhatskyi, I. F., 2020. Otrymannia splaviv systemy Cu-Cr-Zr v umovakh elektronno-promenevoi lyvarnoi tekhnolohii (The rejection of alloys in the Cu-Cr-Zr system in the minds of electronic exchange technology). In: Kyiv, PTIMA NAS of Ukraine, New technologies and materials in mechanical engineering, Proceedings of the 8th All-Ukrainian Scientific and Practical Conference, Kyiv, September 3–6. 2020, рp. 21–23 [in Ukrainian].
Hristenko, V. V., Rudenko, M. A. and Kirievskij, B. A., 2010. Vlijanie sostava uprochnjajushhej dobavki na rastvorimost' hroma i zheleza v mednoj faze monotekticheskih rasplavov Cu-[Fe-Cr-C] (Influence of the composition of the strengthening additive on the solubility of chromium and iron in the copper phase of monotectic melts Cu-[Fe-Cr-C]). Processy lit'ja, no. 6, pp. 53–58 [in Russian].
Kirievskij, B. A., Hristenko, V. V. and Trubachenko, L. M., оskva, 2008. Litye dispersnouprochnennye mednye splavy na osnove monotekticheskih sistem (Cast dispersion-strengthened copper alloys based on monotectic systems). Metallurgija mashinostroenija, no. 4, pp. 20–24 [in Russian].
Likhatskyi, R. F. and Voron, M. M., 2020. Oderzhannia splaviv systemy Cu-V elektronnopromenevoiu plavkoiu (The maintenance of alloys in the Cu-V system by electronic exchange fusion). In: Kyiv, PTIMA NAS of Ukraine, New technologies and materials in mechanical engineering, Proceedings of the 8th All-Ukrainian Scientific and Practical Conference, Kyiv, September 3-6. 2020, pp. 24–25 [in Ukrainian].
Okamoto, H., 2016. Alloy phase diagrams. ASM International, p. 800.
Turchanin, M. A., 2006. Phase equilibria and thermodynamics of binary copper systems with 3d-metals. 2th. copper-vanadium system. Powder Metallurgy and Metal Ceramics, vol. 45, no. 5-6, pp. 272-278. doi: 10.1007/s11106-006-0075-0 [in English].
Kirievskij, B. A. and Trubachenko, L. N., 2010. Osobennosti strukturoobrazovanija splavov sistemy Cu-[Ni-Si]-[Cr-Fe-C] (Features of structure formation of alloys of the Cu-[Ni-Si]- [Cr-Fe-C] system). Processy lit'ja, no. 1, pp. 66–71 [in Russian].
Milne-Thomson, L. M., 2010. Theoretical Hydrodynamics: 4th ed. Macmillan Company, p. 686.
Aristov, S.N., Prosvirjakov, E.Ju., Spevak, L. F., 2016. Nestacionarnaja konvekcija Benara-Marangoni sloistyh techenij vjazkoj neszhimaemoj zhidkosti (Unsteady Benard-Marangoni convection of layered viscous incompressible fluid flows). Teoreticheskie osnovy himicheskoj tehnologii, vol. 50, no. 2, pp. 137-146. doi: 10.7868/S0040357116020019 [in Russian].
Zinov’ev, V.E., 1989. Teplofizicheskie svojstva metallov pri vysokih temperaturah: spravochnik (Thermophysical properties of metals at high temperatures: a handbook). Moscow: Metallurgy, 384 p. [in Russian].
Iida, T., Guthrie, R., Isac, M. and Tripathi, N., 2006. Accurate predictions for the viscosities of several liquid transition metals, plus barium and strontium. Metal. Mater. Trans. B., no. 37, pp. 403–412. doi: 10.1007/s11663-006-0025-8.
Kolosov, A. Ju., 2020. Modeling the processes of coalescence and sintering in mono- and bimetallic nanosystems. Ph.D. Thesis. Tver, p. 200. [in Russian].
Galenko, P.K. and Danilov, D.A., 1997. Local nonequilibrium effect on rapid dendritic growth in a binary alloy melt. Physics Letters, no. 235, pp. 271–280. doi: 10.1016/S0375-9601(97)00562-8.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Р.Ф. Ліхацький, М.М. Ворон, Є.О. Матвієць, В.В. Перехода
This work is licensed under a Creative Commons Attribution 4.0 International License.
