JMMCE  Vol.10 No.12 , October 2011
Corrosion Behavior of Alumina Reinforced Aluminium (6063) Metal Matrix Composites
ABSTRACT
The influence of alumina volume percent and solution heat-treatment on the corrosion behaviour of Al (6063) composites and its monolithic alloy in salt water, basic and acidic environments is investigated. Al (6063) – Al2O3 particulate composites containing 6, 9, 15, and 18 volume percent alumina were produced by adopting two step stir casting. Mass loss and corrosion rate measurements were utilized as criteria for evaluating the corrosion behaviour of the composites. It is observed that Al (6063) – Al2O3 composites exhibited excellent corrosion resistance in NaCl medium than in the NaOH and H2SO4 media. The unreinforced alloy exhibited slightly superior corrosion resistance than the composites in NaCl and NaOH media but the composites had better corrosion resistance in H2SO4 medium. Furthermore, solution heat-treatment resulted in improved corrosion resistance for both the composites and the unreinforced alloy while the effect of volume percent alumina on corrosion resistance did not follow a consistent trend.

Cite this paper
K. Alaneme and M. Bodunrin, "Corrosion Behavior of Alumina Reinforced Aluminium (6063) Metal Matrix Composites," Journal of Minerals and Materials Characterization and Engineering, Vol. 10 No. 12, 2011, pp. 1153-1165. doi: 10.4236/jmmce.2011.1012088.
References
[1]   T. A. Khalifa and T. S. Mahmoud, Elevated Temperature Mechanical Properties of Al alloy AA6063/SiCp MMCs, Proceedings of the World Congress on Engineering 2009 Vol II WCE 2009, July 1 – 3, London, U.K, ISBN: 978 -988 -18210-1-0.

[2]   M. Adiamak, Selected Properties of Aluminium Base Composite Reinforced with Intermetallic Particles, Journal of Achievement in Materials and Manufacturing Technology, Vol. 14, Issue1-2, 2006, Pp 43-47.

[3]   K. R. Ahmad, J. B. Shansul, L.B Hussain and Z. A. Ahmad, The effect of Reinforcement Particle Size on the Microstructure and Hardness of Al/Al2O3 Composite via Powder Metallurgy Route 2003, 12th Conference and 13th Annual General Meeting of the Electron Microscopy Society of Malaysia, Langkawi.

[4]   V. S. Aigbodion, Particulate Strengthened Al-Si/Alumino-Silicate Composite, Journal of Materials Science and Engineering A, Vol. 460-461, 2007, Pp 574-578.

[5]   T. V. Christy, N. Murugan, S. Kumar, Comparative Study on the Microstructure and Mechanical Properties of Al6061/TiB2/12p, Journal of Minerals and Materials Characterization and Engineering, Vol. 9, No.1, 2010, Pp 57-65.

[6]   J. S. Kashan, The Effect of Artificial Aging on Mechanical Properties of Metal Matrix Composite, Engineering and Technology Journal, Vol. 28, No. 2, 2010, 282 – 288.

[7]   M. Kok, Production and Mechanical Properties of Al2O3 particle reinforced 2024 Aluminium Composites, Journal of Materials Processing Technology, Vol.16, 2005, Pp 381 – 387.

[8]   G. B. V. Kumar, C. S. P. Rao, N. Selvary, and M. S. Bhagyashekar, Studies on Al7075-Al2O3 Metal Matrix Composites. Journal of Minerals and Materials Characterization and Engineering, Volume 9, No. 1, 2010, Pp 43-45.

[9]   O. Omodara and E. C. Onwujiobi, Production and Mechanical Behaviour of Silicon Carbide Reinforced Al (6063) Alloy Particulate Composites, 2010, B.Eng Thesis: Federal University of Technology, Akure, Nigeria.

[10]   Y. L. Saraswathi, S. Das, D. P. Mondal, Influence of Microstructure and Experimental Parameters on the Erosion – Corrosion Behaviour of Al (alloy) Composites, Materials Science and Engineering A, 425(2006): 244 – 254.

[11]   Z. Yussof, K. R. Ahmad, and S. B. Jamaludin, Comparative Study of Corrosion Behavior of AA 2014/15vol%Al2O3p and AA2009/20Vol% SiCw” Portugaliae Electrochemica Acta, Vol. 26, 2008, pp 291-301.

[12]   ASTM Standards, Metals Test Methods and Analytical Procedures, vol. 3.02, Wear and Erosion; Metal Corrosion, G31, 1994, p. 104.

[13]   J. Zhu and L. H. Hihara, Corrosion of continuous Alumina-fibre reinforced Al 2wt.% Cu-T6 metal matrix composite in 3.15wt.% NaCl Solution, Corrosion Science, Vol.52, 2010, 406 – 415.

[14]   M. Tandler, B. Sustarsic, L. Vehovar, Torkar M. Corrosion of Al/SiC Metal-Matrix Composites, Mater Techno, 34(6) (2000) 353 – 358.

[15]   P. C. R. Nunes and L. V. Ramanathan, Corrosion behavior of alumina–aluminium and silicon carbide–aluminium metal–matrix composites, Corrosion 51 (1995) 610–617.

[16]   D. G. Kolman and Butt, Journal of Electrochemical Society, Vol. 130, No.11, 1997, Pp 3785-3791.

[17]   J. M. G. De-Salazaar, A. Urena, S. Manzabedo, M. I. Barrena, Corrosion Behavior of AA6061 and AA7075 Reinorced with Al2O3 Particles in Aerated 3.5% Chloride Solution, Potentiodynamic Measurement and Microstructure Evaluation, Corrosion Science, Volume 41, 1999, pp 529-545.

[18]   Abdul-Jameel, H. P. Nagaswararpa, P. V. Krupakara, and T. R. Shashi Shekar, Evaluation of Corrosion Rate of Al6061/ Zircon Metal Matrix Composite in Sea Water, International Journal of Ocean and Oceanography, Vol. 3, No. 1, 2009, pp. 37-42.

[19]   L. H. Hihara, Corrosion of Metal Matrix Composite” ASM Handbook Vol. 13B, Corrosion: Materials, S.D Craner and B.S., Covino Jr Ed., ASM International, 2005, pp. 526-524.

[20]   Z. M. Gasem and M. Al- Qutub, Corrosion Behavior of Powder Metallurgy Aluminium Alloy 6061/Al2O3 Metal Matrix Composite” 6th Saudi Engineering Conference KFUPM, Dhahran, Volume 5, 2008, pp. 270-280.

[21]   B. Bobic, S. Mitrovic, M. Bobic, and I. Bobic, Corrosion of Metal Matrix Composites with Aluminium Alloy Substrate, Tribology in Industry, Volume 32, No. 1, 2010, pp. 3-11.

 
 
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