Abstract
The present investigation studies the prospects of using nanoparticles as reinforcement ceramic powders to gain improved performance of A356 Al cast alloy. Alumina nano-powder of 40 nm size was stirred into the A356 matrix with different fraction ratios ranging from (0, 1, 2 and 4 wt%) in a mushy zone (600 °C) using a constant stirring time for one minute. To evaluate the results, the alloys were further characterized by various tribological and mechanical characterization methods. The results showed higher strength values with improved ductility when compared to the monolithic alloy under the same casting conditions. Also, the wear resistance has been positively enhanced as the amount of the Al2O3 nano-particles addition increases from 1 to 4 wt% leading to a decrease in the weight loss ranging from 5.5 to 4.0 mg, respectively. The Scanning Electron Microscopy of the fracture surface and the wear surface revealed the presence of nanoparticles at the interdendritic space of the fracture surface and was confirmed with an EDX analysis of these particles.
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References
Dhingra KA (1986) Metal replacement by composite. JOM 38(03):17
Mehrabian R, Riek GR, Flemings CM (1974) Preparation and casting of metal-particulate non-metal composites. Metall Trans 5A:1899–1905
Eliasson J, Sandstorm R (1995) Applications of aluminium matrix composites Part 1, Newaz GM, Neber-Aeschbacherand H, Wohlbier FH (eds) Trans Tech Publications, Switzerland, pp 3–36
El-Mahallawi SI, Rashad MR, Mahmoud ST, Shash YA (2006) Effect of processing parameters on synthesis and mechanical characteristics of A356/(Al2O3)p cast metal matrix nano-composites (MMNCs). Sixth arab foundry symposium, (ARABCAST 2006), Sharm El Sheik, Egypt. pp 68–77 Nov 12–15
Elmahallawi SI, Egenfeld K, Kouta HF, Hussein A, Mahmoud ST, Rashad MR, Shash YA, Abou-AL-Hassan W (2008) Synthesis and characterization of new cast A356/(Al2O3) p metal matrix nano-composites. Proceedings of the 2nd multifunctional nanocomposites and nanomaterials: international conference and exhibition MN2008 Jan 11–13, 2008, Cairo Egypt. Copyright © 2008 by ASME
El-Mahallawi SI, Shash Y, Eigenfeld K, Mahmoud T, Rashad R, Shash A, and El-Saeed M (2010) Influence of nano-dispersions on strength ductility properties of semi-solid cast A356 Al Alloy. Mater Sci Technol, online, Oct 2010
Prabu BS (2006) Influence of stirring speed and stirring time on distribution of particles in cast MMC. J Mater Process Technol 171:268–273
Koch CC (2002) Nanostructured materials processing, properties and potential applications. 1st edn. ISBN-10: 0815514514
Dey KA, Poddar P, Singh KK, Sahoo LK (2006) Mechanical and wear properties of rheocast and conventional gravity die cast A356 Alloy. Mater Sci Eng A 435–436:521–529
Acknowledgments
The authors would like to thank the late Prof. Dr.-Ing. Y. Shash the head of Mechanical Design and Production Dept., Faculty of Engineering, Cairo University for his kind support and wise scientific advices.
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Shash, A.Y., Amer, A.E., El-Saeed, M. (2015). Influence of Al2O3 Nano-dispersions on Mechanical and Wear Resistance Properties of Semisolid Cast A356 Al Alloy. In: Öchsner, A., Altenbach, H. (eds) Mechanical and Materials Engineering of Modern Structure and Component Design. Advanced Structured Materials, vol 70. Springer, Cham. https://doi.org/10.1007/978-3-319-19443-1_2
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DOI: https://doi.org/10.1007/978-3-319-19443-1_2
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