Nanostructured Composite Materials Based on Al–Mg Alloy Modified with Fullerene C60

• Published in: Inorganic materials : applied research 2018, Vol.9 (3), p.472-477
• Main Authors: Evdokimov, I. A., Perfilov, S. A., Pozdnyakov, A. A., Blank, V. D., Bagramov, R. Kh, Perezhogin, I. A., Kulnitsky, B. A., Kirichenko, A. N., Aksenenkov, V. V.
• Format: Article
• Language: English
• Subjects: Aluminum base alloys; Ball milling; Bend strength; Buckminsterfullerene; Chemistry; Chemistry and Materials Science; Comminution; Composite Materials; Extrusion; Fiberglass; Fullerenes; Hot extrusion; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Materials Science; Mechanical properties; Nanostructure; Phase composition; Size reduction; Titanium alloys; Titanium base alloys
• ISSN: 2075-1133; 2075-115X
• DOI: 10.1134/S2075113318030139

Nanostructured composite materials (NCMs) based on Al–Mg alloy AMg6 (1560) modified with fullerene C 60 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 C 60 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/cm 3 , which provides a value of the specific strength on the level of titanium alloys and fiberglass.