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Influence of various types of treatment on the structure, density, and electrical conductivity of deformed alloys of the Al–Mg system

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Abstract

A comparative investigation on the influence of AlZr4, AlZr10, and AlSc2 modifying master alloys, as well as magnetic-pulsed treatment (MPT) on density (in the liquid and solid states), electrical conductivity (in a solid state), and macrostructure of AMg5 and AMg6 alloys is performed. Mater melts are poured into special facilities providing cooling rates during the crystallization of ~102, ~103, and ~106C/s. Master alloys are introduced into the melts in an amount of 0.01% by the modifier element. It is shown that the modifying treatment of the melts by additives of nucleating master alloys promotes an increase in alloy densities in liquid and solid states. The electrical conductivity of alloys with additives of AlZr4 and AlZr10 master alloys lowers. The introduction of the AlSc2 master alloy increases in electrical conductivity of AMg5 and AMg6 alloys. This effect is established for the first time and requires additional investigations. It is established that, when compared with AlZr4 and AlZr10 master alloys, the AlSc2 master alloy prepared by crystallization in a water-cooled roll crystallizer most strongly affects the physical properties of alloys. It also provides the maximal macrograin refinement. MPT of alloys according to the axial effect scheme, similarly to the introduction of modifying master alloys, promotes an increase in the density of alloys in liquid and solid states. Electrical conductivity increases after MPT like after the addition of the AlSc2 master alloy into the melts. Alloy macrograin refining during MPT is comparable with the modification with the AlZr4 master alloy. Based on comparative investigations, it is concluded that MPT can be attributed to physical modification methods. It is proposed to use the determination procedures of density and electrical conductivity for the express evaluation of the modifying efficiency of studied effects.

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References

  1. Mordike, B.L. and Ebert, T., Magnesium. Properties—applications—potential, Mater. Sci. Eng., 2001, vol. 302, pp. P. 37–45.

    Article  Google Scholar 

  2. Mil’man, Yu.V., Neikov, O.D., Sirko, A.I., Danilenko, N.I., Samelyuk, A.V., Zakharova, N.P., Sharovskii, A.I., Ivashchenko, R.K., Goncharuk, V.A., and Chaikina, N.G., Structure and properties of Al–Mg alloys depending on scandium and zirconium additions and production methods, Powder Metall. Metal Ceram., 2010, vol. 49, nos. 7–8, pp. P. 430–437.

    Article  Google Scholar 

  3. Wang Xu, Chen Guoqin, Li Bing, Wu Lianmei, and Jiang Daming, Effects of Sc, Zr and Ti on the microstructure and properties of Al alloys with high Mg content, Rare Met., 2010, vol. 29, no. 1, pp. 66–71.

    Article  Google Scholar 

  4. Shi’ang Zhou, Zhen Zhang, Ming Li, Dejiang Pan, Hailin Su, Xiaodong Du, Ping Li, and Yucheng Wu, Effect of Sc on microstructure and mechanical properties of as-cast Al–Mg alloys, Mater. Design, 2016, vol. 90, pp. 1077–1084.

    Article  Google Scholar 

  5. Kaiser, M.S., Datta, S., Roychowdhury, A., and Banerjee, M.K., Effect of scandium on the microstructure and ageing behaviour of cast Al–Mg alloys, Mater. Charact., 2008, vol. 59, no. 11, pp. 1661–1666.

    Article  Google Scholar 

  6. Kaiser, M.S., Datta, S., Bandyopadhyay, P.P., Guha, A., Roychowdhury, A., and Banerjee, M.K., Effect of grain refinement through minor additions of scandium and zirconium on the machinability of Al–Mg alloys, J. Inst. Eng. (India): Ser. D, 2013, vol. 94, no. 1, pp. 17–24.

    Google Scholar 

  7. Huizhong, Li, Haijun, Wang, Xiaopeng, Liang, Yan, Wang, and Hongting, Liu, Effect of Sc and Nd on the microstructure and mechanical properties of Al–Mg–Mn alloy, J. Mater. Eng. Perf., 2012, vol. 21, no. 1, pp. 83–88.

    Article  Google Scholar 

  8. Kumar, S., Hari, BabuN., Scamans, G.M., and Fan, Z., Influence of intensive melt shearing on the microstructure and mechanical properties of an Al–Mg alloy with high added impurity content, Metal. Mater. Trans. A, 2011, vol. 42A, pp. 3141–3149.

    Article  Google Scholar 

  9. Eskin, G.I., Improvement of the structure and properties of ingots and worked aluminum alloy semifinished products by melt ultrasonic treatment in a cavitation regime, Metallurgist, 2010, vol. 54, nos. 7–8, pp. 505–513.

    Article  Google Scholar 

  10. Murashkin, M.Yu., Kil’mametov, A.R., and Valiev, R.Z., Structure and mechanical properties of an aluminum alloy 1570 subjected to severe plastic deformation by high-pressure torsion, Phys. Met. Metallogr., 2008, vol. 106, no. 1, pp. 90–96.

    Article  Google Scholar 

  11. Hanbing Xu, Thomas, T. Meek, and Qingyou Han, Effects of ultrasonic field and vacuum on degassing of molten aluminum alloy, Mater. Lett., 2007, vol. 61, nos. 4–5, pp. 1246–1250.

    Google Scholar 

  12. Deev, V.B., Selyanin, I.F., Kutsenko, A.I., Belov, N.A., and Ponomareva, K.V., Promising resource saving technology for processing melts during production of cast aluminum alloys, Metallurgist, 2015, vol. 58, nos. 11–12, pp. 1123–1127.

    Article  Google Scholar 

  13. Selyanin, I.F., Deev, V.B., Belov N.A., Prikhodko, O.G., and Ponomareva, K.V., Physical modifying effects and their influence on the crystallization of casting alloys, Russ. J. Non-Ferrous Met., 2015, vol. 56, no. 4, pp. 434–436.

    Article  Google Scholar 

  14. Li, Q.L., Xia, T.D., Lan, Y.F., and Li, P.F., Effects of melt superheat treatment on microstructure and wear behaviours of hypereutectic Al–20Si alloy, Mater. Sci. Technol., 2014, vol. 30, no. 7, pp. 835–841.

    Article  Google Scholar 

  15. Jian, X., Xu, H., Meek, T.T., and Han, Q., Effect of power ultrasound on solidification of aluminium A356 alloy, Mater. Lett., 2005, no. 59, pp. 190–193.

    Article  Google Scholar 

  16. Nikitin, K.V., Nikitin, V.I., and Timoshkin, I.Yu., Upravlenie kachestvom litykh izdelii iz alyuminievykh splavov na osnove yavleniya strukturnoi nasledstvennosti (Quality Control of Cast Products Made of Aluminum Alloys Based on the Phenomenon of Structural Heredity), Moscow: Radynitsa, 2015.

    Google Scholar 

  17. Nikitin, K.V., Amosov, E.A., Nikitin, V.I., Glushchenkov, V.A., and Chernikov, D.G., Theoretical and experimental substantiation of treatment of aluminumbased melts by pulsed magnetic fields, Russ. J. Non-Ferrous Met., 2015, vol. 56, no. 6, pp. 599–605.

    Article  Google Scholar 

  18. Nikitin, K.V., Nikitin, V.I., Glushchenkov, V.A., Timoshkin, I.Yu., and Chernikov, D.G., Melt treatment by pulsed magnetic fields aimed at controlling the structure and properties of industrial silumins, Russ. J. Non-Ferrous Met., 2016, vol. 57, no. 3, pp. 207–210.

    Article  Google Scholar 

  19. Nikitin, K.V., Nikitin, V.I., and Chernikov, D.G., Application of structural in heritance phenomenon at producing the Al–Mg system alloys, Key Eng. Mater., 2016, vol. 684, pp. 269–272.

    Article  Google Scholar 

  20. Nikitin, K.V., Nikitin, V.I., Timoshkin, I.Yu., Krivolapov, D.S., and Chernikov, D.G., Hereditary influence of the structure of charge materials on the density of aluminum alloys of the Al–Si system, Russ. J. Non-Ferrous Met., 2015, vol. 56, no. 1, pp. 20–25.

    Article  Google Scholar 

  21. Lamikhov, L.K. and Samsonov, G.V., Revisited modification of aluminum and AL7 alloy with transition metals, Tsvetn. Met., 1964, no. 1, p. 24.

    Google Scholar 

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Authors and Affiliations

  1. Samara State Technical University, Samara, 443100, Russia

    K. V. Nikitin, V. I. Nikitin & D. S. Krivopalov

  2. Samara National Research University, Samara, 443086, Russia

    V. A. Glushchenkov & D. G. Chernikov

Authors
  1. K. V. Nikitin
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  2. V. I. Nikitin
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  3. D. S. Krivopalov
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  4. V. A. Glushchenkov
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  5. D. G. Chernikov
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Correspondence to K. V. Nikitin.

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Original Russian Text © K.V. Nikitin, V.I. Nikitin, D.S. Krivopalov, V.A. Glushchenkov, D.G. Chernikov, 2017, published in Izvestiya Vysshikh Uchebnykh Zavedenii, Tsvetnaya Metallurgiya, 2017, No. 4, pp. 46–52.

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Nikitin, K.V., Nikitin, V.I., Krivopalov, D.S. et al. Influence of various types of treatment on the structure, density, and electrical conductivity of deformed alloys of the Al–Mg system. Russ. J. Non-ferrous Metals 58, 475–480 (2017). https://doi.org/10.3103/S1067821217050121

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  • DOI: https://doi.org/10.3103/S1067821217050121

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