The paper examines how scandium and zirconium doping of Al–Mg alloys produced by conventional casting and powder metallurgy methods influences their structure and mechanical properties. It is shown that Al–Mg powder alloys are not recrystallized in the plastic deformation process and subsequent heating to 550°C. In cast alloys, recrystallization begins even in the extrusion process. Additions of scandium, zirconium, and chromium restrain the recrystallization of alloys when heated to 550°C. Doping of Al–Mg alloys with scandium and zirconium increases their strength by 80−120%. Doped powder alloys have much greater strength than cast alloys and quite high plasticity.
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V. I. Elagin, Doping of Deformable Aluminum Alloys by Transition Metals [in Russian], Metallurgiya, Moscow (1975).
V. N. Rechkin, L. Kh. Lamikhov, and T. P. Samsonova, “Crystal structure of scandium aluminides,” Kristallografiya, 9, No. 3, 405 (1964).
Yu. V. Mil’man, “Effect of scandium on the structure, mechanical properties, and corrosion resistance of aluminum alloys,” in: Advanced Materials and Technologies [in Ukrainian], Akademperiodika, Kiev (2003), Vol. 1, pp. 335–360.
M. E. Drits, S. G. Pavlenko, L. S. Toropova, et al., “On the mechanism of scandium contribution to the increase in strength and thermal stability of Al–Mg alloys,” DAN SSSR, 257, No. 2, 353–356 (1981).
M. E. Drits, L. S. Toropova, Yu. G. Bykov, et al., “Recrystallization of Al–Sc alloys,” Izv. AN SSSR. Metally, No. 1, 173–178 (1982).
Y. Miura, T. Shioyama, and D. Haga, “Recrystallization of Al–3 Mg and Al–3 Mg–0.2 Sc Alloys,” in: Mater. Sci. Forum: Proc. 5th Int. Conf. ICAAS Aluminum Alloys, Their Physical and Mechanical Properties (Grenoble, France, July 1–5, 1996), 217–222, Transtec Publ., Switzerland–Germany–UK–USA (1996), pp. 505–510.
M. S. Keiser, S. Datta, A. Roychowdhury, et al., “Effect of scandium on the microstructure and ageing behavior of cast Al–6 Mg alloys,” Mater. Charact., 59, 1661–1666 (2008).
V. I. Elagin, V. V. Zakharov, S. G. Pavlenko, et al., “Effect of zirconium additions on ageing of Al–Sc alloys,” Fiz. Met. Metalloved., 60, No. 1, 97–100 (1985).
V. G. Davydov, V. I. Elagin, V. V. Zakharov, et al., “On doping of aluminum alloys with scandium and zirconium,” Metalloved. Term. Obrab. Met., No. 8, 25–30 (1996).
Yu. V. Milman, A. Ya. Ishenko, K. V. Yemelianov, et. al., “Influence of the addition of scandium and other transition metals on the structure and mechanical properties of aluminum–magnesium alloys and their welded joints,” in: Int. Conf. Advanced Materials Symp. A: Engineering of Composites: Investigations, Technologies and Perspectives, Kiev (1999), p. 344.
Yu. V. Milman, D. V. Lotsko, and O. I. Sirko, “Sc effect of improving mechanical properties in aluminum alloys,” in: Mater. Sci. Forum: Aluminum Alloys, Their Physical and Mechanical Properties, 331–337, Trans. Tech. Publications, Switzerland (2000), Part 2, pp. 1107–1112.
K. L. Kendig and D. B. Miracle, “Strengthening mechanisms of an Al–Mg–Sc–Zr alloy,” Acta Mat., 50, 4165–4175 (2002).
Liu Zhongxia, Li Zijiong, and Wang Mingxing, “Effect of complex alloying of Sc, Zr and Ti on the microstructure and mechanical properties of Al–5Mg alloys,” Mat. Sci. Eng., A483–484, 120–122 (2008).
O. D. Neikov, O. V. Krainikov, Yu. V. Mil’man, et al., A Method of Making Semifinished Products of Aluminum Alloys [in Ukrainian], Bulletin No. 9, Applied July 30, 2003, Published September 15 (2005).
S. V. Pan, A. N. Slipenyuk, V. V. Kuprin, et al., “Effect of the scandium content on the structure and hardness of fast-quenched Al–Sc alloys,” Metallofiz. Noveish. Tekhnol., 20, 63–66 (1998).
B. I. Bondarev and Yu. V. Shmakov, Technologies of Producing Rapidly-Crystallized Aluminum Alloys [in Russian], All-Russian Institute of Light Alloys, Moscow (1997).
O. D. Neikov, Yu. V. Milman, D. B. Miracle, et al., “Effect of Sc alloying additions on structure and mechanical properties of PM and cast high-strength Al alloys of same composition,” in: Proc. EURO PM 2001, Acropolis Convention Centre, Nice, France (2001), Vol. 2, pp. 219–224.
R. V. Patsina, N. P. Zakharova, and A. I. Sirko, “Effect of melting conditions on the structure and properties of high-strength aluminum alloys,” in: Proc. Int. Sci. Conf. Special Metallurgy: Yesterday, Today, Tomorrow [in Russian], Kiev (2002), pp. 361–366.
V. V. Garbuz, “Gas analysis methods,” in: Inorganic Materials Science. Fundamentals of Materials Science [in Russian], Naukova Dumka, Kiev (2008), Vol. 1, pp. 858–875.
O. D. Neikov, Yu. V. Mil’man, G. I. Vasil’eva, et al., Aluminum-Based Alloy [in Russian], Patent 41101, Bulletin 9, Published 12 May (2009).
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Translated from Poroshkovaya Metallurgiya, Vol. 49, No. 7–8 (474), pp. 77–85, 2010.
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Mil’man, Y.V., Neikov, O.D., Sirko, A.I. et al. Structure and properties of Al–Mg alloys depending on scandium and zirconium additions and production methods. Powder Metall Met Ceram 49, 430–437 (2010). https://doi.org/10.1007/s11106-010-9254-0
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DOI: https://doi.org/10.1007/s11106-010-9254-0