Abstract
In this study, the fabrication of an Al-4 wt.% Mg-graphite particle composite is described. Composites of Al-4 wt.% Mg alloys containing 1–10 volume percentages of graphite particles were prepared using the compocasting technique. A pitched-blade stirrer was used to stir the graphite particles in the semi-solid melt, and the slurry was then poured into a metallic mould to obtain the cast bars. The emphasis of the investigation was on the important features of the castings obtained by this method, specifically the distribution of graphite particles along the cast bars and porosities. Then we studied the effect of the addition of the graphite on the strength and hardness of these cast bars. The results show that both the tensile strength and the hardness decrease with the increase in graphite content.
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Hassan, A.M., Hayajneh, M.T. & Al-Omari, M.AH. The effect of the increase in graphite volumetric percentage on the strength and hardness of Al-4 weight percent Mg-graphite composites. J. of Materi Eng and Perform 11, 250–255 (2002). https://doi.org/10.1361/105994902770344024
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DOI: https://doi.org/10.1361/105994902770344024