[Kovove materialy - Metallic materials]
    Fri - March 29, 2024 - 00:08 No. of hits : 1736510 ISSN 1338-4252 (online) ISSN 0023-432X (printed)
© Institute of Materials and Machine Mechanics, Slovak Academy of Sciences, Bratislava, Slovak Republic

VOLUME 53 (2015), Issue 5

Fabrication of MgO nanoparticulates reinforced aluminum matrix composites using stir-casting method
ABDIZADEH, H., VAJARGAH, P. H., BAGHCHESARA, M. A.
vol. 53 (2015), no. 5, pp. 319 - 326

Abstract
In the present work, A356.1 aluminum alloy matrix composites reinforced with 1.5, 2.5, and 5 vol.% MgO nanoparticles have been fabricated at various casting temperatures, viz. 800, 850 and 950 °C using stir casting method. Density, crystal structure and microstructure of the samples were investigated in order to achieve an optimum amount of casting temperature. Also, the composites were characterized by scanning electron microscopy (SEM) and X-ray diffraction (XRD). Results indicated that with increasing the content of the second phase (MgO), the amount of agglomeration and porosity increased. However, the microstructural characterization of the composite samples showed uniform distribution of reinforcement and presence of the minimal porosity. Density results showed adjacent values in comparison with theoretical ones. Composite cast at 850 °C could be considered as the optimum fabrication conditions.

Key words
aluminum matrix composite, stir casting, MgO nanoparticles, microstructure, density

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Full title of this journal is bilingual: Kovové materiály - Metallic Materials.
The official abbreviation in accordance with JCR ISI is Kovove Mater.


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