Nanostructured Composite Materials Based on Al–Mg Alloy Modified with Fullerene C60
| Autor: | V. V. Aksenenkov, I. A. Evdokimov, A. A. Pozdnyakov, S. A. Perfilov, B. A. Kulnitsky, I. A. Perezhogin, A. N. Kirichenko, Vladimir Blank, R. Kh. Bagramov |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Alloy General Engineering Titanium alloy 02 engineering and technology engineering.material 021001 nanoscience & nanotechnology 01 natural sciences Specific strength Flexural strength 0103 physical sciences Ultimate tensile strength engineering General Materials Science Extrusion Crystallite Composite material 0210 nano-technology Ball mill |
| Zdroj: | Inorganic Materials: Applied Research. 9:472-477 |
| ISSN: | 2075-115X 2075-1133 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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