Effect of Cast Geometries on Particle Dispersion in Metal Matrix Composites

Abstract:

Metal composite materials are not being extensively used because of their complex processing, agglomeration and dispersion of particles in case of discontinuous reinforcement. Significant amount of research work has been carried to understand and improve primary processing of metal composites using liquid processing route. Most of the research revealed the fact that composites were cast either in plate geometry or geometry of crucible. Present work mainly focuses to examine effect of mold cavity geometries on dispersion of particles in solidifying composite slurries. Aluminium alloy composites using silicon carbide (SiC) particles were manufactured using stir casting technique. ‘T’ shape and plus shape geometries were cast in the present work. Critical velocity and solidification front velocity was analyzed to investigate effect of cast geometries on particle dispersion. Microstructural examination revealed that cast geometries have significant effect on dispersion of particles.

• Periodical: Applied Mechanics and Materials (Volume 877)
• Pages: 60-65
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.877.60
• Online since: February 2018
• Authors: Vishal Mehta*, Roma Patel, Mayur Sutaria
• Keywords: Aluminium, Cast Geometries, Metal Matrix Composites (MMC), Particle Dispersion, Stir Casting

References

[1] Hashim J, Looney L, Hashmi M.S. J (2002). Particle Distribution in Cast Metal Matrix Composites-Part I, Journal of Materials Processing Technology, Vol. 123, p.251–257.

DOI: 10.1016/s0924-0136(02)00098-5

[2] Kok M (2005). Production and Mechanical Properties of Al2O3-Particle Reinforced 2024 Aluminum Alloy Composites, Journal of Materials Processing Technology, vol. 161, p.381–387.

DOI: 10.1016/j.jmatprotec.2004.07.068

[3] Naher S, Brabazon D, Looney L (2007). Computational and Experimental Analysis of Particulate Distribution during Al–Sic MMC Fabrication, Composites: Part A, Vol. 38, p.719–729.

DOI: 10.1016/j.compositesa.2006.09.009

[4] Fatih T, Ayfer K, Ahmet K (2010). Processing and Micro Structural Characterization of AA 1070 and AA 6063 Matrix B4CpReinforced Composites, Materials and Design, Vol. 31, pp. S87–S91.

DOI: 10.1016/j.matdes.2009.11.064

[5] Ashok B (2012). Metallurgical and Mechanical Characterization of Stir Cast AA6061-T6–Alnp Composite, Materials and Design, Vol. 40, p.52–58.

DOI: 10.1016/j.matdes.2012.03.038

[6] Hemalatha K, Venkatachalapathy V, Alagumurthy N K, (2013). Processing and Synthesis of Metal Matrix Al 6063/Al2o3 Metal Matrix Composite by Stir Casting Process, International Journal of Engineering Research and Applications, Vol. 3, pp.1390-1394.

[7] Balaji V, Sateesh N, Hussain M M, (2015). Manufacture of Aluminium Metal Matrix Composite (Al7075-SiC) by Stir Casting Technique, Materials Today: Proceedings, pp.3403-3408.

DOI: 10.1016/j.matpr.2015.07.315

[8] Jaydevan K R and Sijo M T, (2016). Analysis of Stir Cast Aluminium Silicon Carbide Metal Matrix Composite: A comprehensive Review, Procedia Technology, Vol. 24, pp.379-385.

DOI: 10.1016/j.protcy.2016.05.052

[9] Uhlmann D R, Chalmers B, Jackson K A, (1964). Interaction between Particles and a Solid-Liquid Interface, Journal of Applied Physics, Vol. 35, pp.2986-2993.

DOI: 10.1063/1.1713142

[10] Shangguan D, Ahuja S, Stefanescu D M, (1992). An Analytical Model for the Interaction between an Insoluble Particle and an Advancing Solid-liquid Interface, Metallurgical Transactions A, Vol. 23, pp.669-680.

DOI: 10.1007/bf02801184

[11] Ferguson J B, Kaptay G, Schultz B F, Rohatgi P K, CHO K, Kim C, (2014). Brownian motion Effects on Particle Pushing and Engulfment during Solidification in Metal-Matrix Composites, Metallurgical and Materials Transactions A, Vol. 45, p.4635–4645.

DOI: 10.1007/s11661-014-2379-x

[12] Nair N, Mehta V, Sutaria M P, (2016). Effect of Thermal Parameters on Dispersion of Particles in Cast Aluminium Matrix Composite, Transactions of 64th IFC, pp.21-24.

[13] Kim J K & Rohatgi P K, (1998). An Analytical Solution of the Critical Interface Velocity for the Encapturing of Insoluble Particles by a Moving Solid-liquid Interface, Metallurgical and Materials Transactions A, Vol. 29, p.351–358.

DOI: 10.1007/s11661-998-0186-y

[14] Garvin J W & Udaykumar H S, (2003). Particle-Solidification Front Dynamics Using a Fully Coupled Approach, Part I: Methodology, Journal of Crystal Growth, Vol. 252, p.451–466.

DOI: 10.1016/s0022-0248(03)00941-2