Fabrication and Characterization of SiC, Al₂O₃ and B₄C Reinforced Al-Zn-Mg-Cu Alloy (AA 7075) Metal Matrix Composites: A Study

Abstract:

The paper presents the results of experimental investigation on the characterization and analysis of mechanical properties of composites formed. Three aluminum metal matrix composites reinforced with 10 wt% of B₄C, SiC and Al₂O₃ particles were processed. The stir casting method followed by hot rolling was used for fabrications of aluminium 7075 metal matrix composites, being one of the cost effective industrial methods. Experimental results show nearly a uniform distribution and good dispersion of reinforced particles within aluminium matrix. Both tensile strength and hardness are enhanced by incorporation of reinforcement particles into the matrix. Scanning electron microscope (SEM) analysis was done to study the good dispersion of particles and surface characteristics.

• Periodical: Advanced Materials Research (Volumes 622-623)
• Pages: 1295-1299
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.622-623.1295
• Online since: December 2012
• Authors: T. Senthilvelan, S. Gopalakannan, S. Vishnuvarthan, K. Keerthivaran
• Keywords: Mechanical Property, Metal Matrix Composite (MMC), Microhardness, SEM, Wettability

References

[1] J. Hashim, L. Looney and M.S.J. Hashmi: Metal matrix composites: Production by stir casting method, J. Mater. Process. Tehnol, 92-93(1999), 1-7.

DOI: 10.1016/s0924-0136(99)00118-1

[2] S. Xiandong, C. Luo, Z. Luo, L. Ouyang: The Fabrication and Properties of Particle Reinforced Cast Metal Matrix Composites: J. Mater. Process. Tehnol, 63(1997), 426-431.

DOI: 10.1016/s0924-0136(96)02659-3

[3] J. Hashim, L. Looney and M.S.J. Hashmi: Particle distribution in cast metal matrix composites Part-I, J. Mater. Process. Tehnol, 123(2002), p.251.

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

[4] G. B. Veeresh Kumar, C. S. P. Rao, N. Selvaraj, M. S. Bhagyashekar: Sudies on Al6061-SiC and Al7075-Al2O3 Metal Matrix Composites: J. Min. Mater Charac Engg. 9(1) (2010), 43-55.

[5] K. M. Shorowordi, T. Laoui, A. S. M. A. Haseeb J. P. Celis, L. Froyen: Microstructure and Interface characteristics of B4C, SiC and Al2O3 reinforced Al matrix Composites: a comparative study. J. Mater. Process. Technol, 142(2003), 738-743.

DOI: 10.1016/s0924-0136(03)00815-x

[6] R. K. Bushan, S. Kumar: Influence of SiC Particles Distribution and Their Weight Percentage on 7075 Al Alloy: J. Mater. Engg. Perform, 20(2011), 317-323.

DOI: 10.1007/s11665-010-9681-6

[7] S Balasivandha Prabu, L. Karunamoorthy, S. Kathiresan, B Mohan: Influence of Stirring speed and stirring time on distribution of particles in cast metal matrix composite. J. Mater. Process. Technol, 171(2006), 268-273.

DOI: 10.1016/j.jmatprotec.2005.06.071

[8] H. J. Min, W. Z. Ling, C. S. Hai, L. W. Jing, D. Y. Ping: Investigation of SiCP/A356 composites made by stir casting method. J Ceram Process Res, 8(1) (2006) 74-77.

[9] H. C. Anilkumar, H. S. Hebbar, K. S. Ravishankar: Mechanical Properties of Fly Ash Reinforced Aluminium Alloy(Al6061) Composites, Int. J. Mech. Mater Engg. 6, (2011), 41-45.

[10] S. Amirkhanlou, B. Niroumand: Synthesis and Characterization of 356-SiCp composites by Stir casting and compocasting methods, Trans. Nonferrous. Met. Soc. China. 20(2010), 788-793.

DOI: 10.1016/s1003-6326(10)60582-1