Abstract
Aluminum alloy matrix composites reinforced with SiC particles (AMC) are potential materials applicable to weight reduction of friction materials. We developed two AMC: A356/SiC and A390/SiC. 30 μm and 60 μm SiC particles with volume fraction of 20% were dispersed in the matrix of A356 and A390 alloys. When the temperature of the liquid alloy was higher than that of the melting point, SIC particles floated up to the surface because of the low viscosity, high surface tension and interfacial energy. To mix the ceramic particles, the aluminum alloy was in the mushy state near the solidus temperature, 610°C for A356 and 645°C for A390. Metallurgical, mechanical and tribological characteristics of the manufactured composites were evaluated.
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Recommended by Guest Editor Dong-Ho Bae
Byeong-choon Goo, who received his Ph.D. from the University of Franche-Comté, France, has been a principal researcher at Korea Railroad Research Institute since 1996. His main research area includes brake system, brake squeal noise, structural analysis, wheel/rail contact, fatigue, and shape memory alloy.
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Goo, BC., Kim, MH. Characteristics of A356/SiCp and A390/SiCp composites. J Mech Sci Technol 26, 2097–2100 (2012). https://doi.org/10.1007/s12206-012-0522-4
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DOI: https://doi.org/10.1007/s12206-012-0522-4