Simulation of the Extensional Flow Mixing of Molten Aluminium and Fly Ash Nanoparticles
This study presents simulations of an aluminium melt containing an initially non-dispersed fly ash nanoparticle phase. Mixing is affected predominantly by means of forced extensional flow via either straight or slanted orifices. The sensitivity to various process parameters is determined. The simulated process is used for the production of cast fly ash-aluminium nanocomposites. The possibilities for rod and plate stock grading in the context of a continuous casting process implementation are discussed.
 Kaczmar JW, Pietrzak K, Wlosinski W. The production and application of metal matrix composite materials. J Mater Process Technol 2000;106:58–67.
 Durisinova K, Durisin J, Orolinova M, Durisin M. Effect of particle additions on microstructure evolution of aluminium matrix composite. J Alloys Compd 2012; 525:137–42.
 William CH. Commercial processing of metal matrix composites. Mater Sci Eng A 1998;244(1):75–9.
 Daojie Zhang, Laurentiu Nastac. Numerical modeling of the dispersion of ceramic nanoparticles during ultrasonic processing of aluminum-based nanocomposites. J mater res technol . 2014;3(4):296–302.
 Sudarshan, Surappa MK. Synthesis of fly ash particles reinforced A356 Al composites and their characterization. Mater Sci Eng-A 2008;480:117–24.
 I. Narasimha Murthy, D. Venkata Rao, J. Babu Rao. Microstructure and mechanical properties of aluminum–fly ash nano composites made by ultrasonic method. Materials and Design 2012;35:55–65.
 Anilkumar HC, Hebbar HS, Ravishankar KS. Mechanicalproperties of fly ash reinforced aluminium alloy (Al6061) composites. Int J Mech Mater Eng 2011;6(1):41–5.
 Michael Oluwatosin Bodunrina, Kenneth Kanayo Alanemea, Lesley Heath Chown. Aluminium matrix hybrid composites: a review of reinforcement philosophies; mechanical, corrosion and tribological characteristics. J mater res technol. 2015;4(4):434–445.
 Rohatgi PK, Daoud A, Schultz BF, Puri T. Microstructure andmechanical behavior of die casting AZ91D-Fly ashcenosphere composites. Compos Part Appl Sci Manuf2009;40(6-7):883–96.
 Gikunoo E, Omotoso O, Oguocha INA. Effect of fly ashparticles on the mechanical properties of aluminium castingalloy A535. Mater Sci Technol 2005;21(2):143–52.
 Yang Y, Lan J, Li X. Study on bulk aluminum matrix nano-composite fabricated by ultrasonic dispersion of nano-sized SiC particles in molten aluminum alloy. Mater Sci Eng A 2004;380:378–83.
 El-Daly AA, Abdelhameed M, Hashish M, Daoush WM. Fabrication of silicon carbide reinforced aluminum matrix nanocomposites and characterization of its mechanical properties using non-destructive technique. Mater Sci Eng A 2013;559:384–93.
 Dikici B, Gavgali M, Bedir. Synthesis of in situ TiC nanoparticles in liquid aluminum: the effect of sintering temperature. J Compos Mater 2010;45(8):895–900.
 Sautter FK. Electrodeposition of dispersion-hardened Nickel–Al2O3 alloys. J Electrochem Soc 1963;110:557.
 Li X, Yang Y, Weiss D. Ultrasonic cavitation based dispersion of nanoparticles in aluminum melts for solidification processing of bulk aluminum matrix nanocomposite: theoretical study, fabrication and characterization. AFS Transactions. Schaumburg, IL, USA: American Foundry Society; 2007.
 Cao G, Konishi H, Li X. Mechanical properties and microstructure of SiC-reinforced Mg-(2,4) Al-1 Si nanocomposites fabricated by ultrasonic cavitation based solidification processing. Mater Sci Eng A 2008;486:357–62.