Abstract
Nanostructured composite materials (NCMs) based on Al–Mg alloy AMg6 (1560) modified with fullerene C60 are obtained by milling of initial materials in a high-energy planetary ball mill and the subsequent hot extrusion of powder mixtures. The structure, phase composition, and physical and mechanical properties of NCMs obtained are studied. It is shown that introduction of 0.3 wt % of fullerene C60 into NCMs prevents agglomeration of the particles during milling, intensifies the particle size reduction, and makes it possible to obtain an average aluminum crystallite size less than 50 nm. After consolidation of the powder mixtures by direct hot extrusion, the obtained materials demonstrate an increase in tensile strength up to 820 MPa and in bending strength up to 1.11 GPa. In this case, the density of NCMs is 2.61 g/cm3, which provides a value of the specific strength on the level of titanium alloys and fiberglass.
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Original Russian Text © I.A. Evdokimov, S.A. Perfilov, A.A. Pozdnyakov, V.D. Blank, R.Kh. Bagramov, I.A. Perezhogin, B.A. Kulnitsky, A.N. Kirichenko, V.V. Aksenenkov, 2017, published in Fizika i Khimiya Obrabotki Materialov, 2017, No. 1, pp. 47–55.
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Evdokimov, I.A., Perfilov, S.A., Pozdnyakov, A.A. et al. Nanostructured Composite Materials Based on Al–Mg Alloy Modified with Fullerene C60. Inorg. Mater. Appl. Res. 9, 472–477 (2018). https://doi.org/10.1134/S2075113318030139
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DOI: https://doi.org/10.1134/S2075113318030139