Mechanical Properties of AA 7075/Al2O3/SiC Nano-metal Matrix Composites by Stir-Casting Method

  • S. SureshEmail author
  • G. Harinath Gowd
  • M. L. S. Deva Kumar
Original Contribution


Demand rises in a worldwide series of the new materials at national and international level. The metal matrix nano-composites are extremely beneficial in several applications such as aerospace, automobile, armed forces, and other commercial applications due to lightweight and cost-effective. In the present study, three various hybrid compositions, namely nano-Al2O3 (20–30 nm), nano-SiC (50 nm), and Mg 1 wt% (fixed), were used as reinforcement materials. Magnesium is to enhance the wettability of Al2O3 and SiC particles in the Al matrix. The compositions are executed at 1.0, 2.0, 3.0, and also 4.0 weight % of nano-Al2O3 and nano-SiC. The cast samplings undertake the tests like heat treatment, microstructural examination, density, tensile, hardness, impact, SEM, EDAX, and XRD analysis. SEM images subject that the nanoparticles relatively disperse as well as attain fine grain microstructure in the matrix. The results reveal that the reinforcement of nanoparticles in Al 7075 matrix substantially increases the mechanical behaviour when compared to base metal.


AA 7075 Nano-materials SiC Al2O3 



The author wishes to thank the Department of Mechanical Engineering, Jawaharlal Nehru Technological University, Ananthapuramu, India, for providing facilities and necessary support in conducting experiments and also Dept. of Mechanical Engineering, MITS, Madanapalle, India, and Dept. of Mechanical Engineering, JNTUA, Ananthapuramu, India, for their support and discussion in the research work.

Compliance with Ethical Standards

Conflict of interest

The author(s) declare(s) that there is no conflict of interest.


  1. 1.
    A. Baradeswaran, S.C. Vettivel, A. Elaya Perumal, N. Selvakumar, R. Issac, Experimental investigation on mechanical behaviour, modelling and optimization of wear parameters of B4C and graphite reinforced aluminium hybrid composites. Mater. Des. 63, 620–632 (2014)CrossRefGoogle Scholar
  2. 2.
    N. Faisal, K. Kumar, Mechanical and tribological behaviour of nanoscaled silicon carbide reinforced aluminium composites. J. Exp. Nanosci. 13(S1), S1–S13 (2018)CrossRefGoogle Scholar
  3. 3.
    P. Pugalenthi, M. Jayaraman, A. Natarajan, Evaluation of mechanical properties of aluminium alloy 7075 reinforced with SiC And Al2O3 hybrid metal matrix composites. Appl. Mech. Mater. 246–251, 766–767 (2015)Google Scholar
  4. 4.
    V. Ramakoteswara Rao, N. Ramanaiah, M.M.M. Sarcar, Tribological properties of aluminium metal matrix composites (AA7075 reinforced with titanium carbide (TiC) particles). Int. J. Adv. Sci. Technol. 88, 13–26 (2016)CrossRefGoogle Scholar
  5. 5.
    D. Bandhu, A. Thakur, Studied characterization & evaluation of Al7075 MMCs reinforced with ceramic particulates and influence of age hardening on their tensile behaviour. J. Mech. Sci. Technol. 32(7), 3123–3128 (2018)CrossRefGoogle Scholar
  6. 6.
    A. Baradeswaran, A. Elaya Perumal, Study on mechanical and wear properties of Al 7075/Al2O3/graphite hybrid composites. Compos. B Eng. 56, 464–471 (2014)CrossRefGoogle Scholar
  7. 7.
    R. Kumar, S. Dhiman, A study of sliding wear behaviours of Al-7075 alloy and Al-7075 hybrid composite by response surface methodology analysis. Mater. Des. 50, 351–359 (2013)CrossRefGoogle Scholar
  8. 8.
    S. Ranganathan, V. Madhankumar, Optimization and characterization of Al5052/SiC metal matrix composite. Int. J. Eng. Sci. Comput. 8(4), 17205 (2018)Google Scholar
  9. 9.
    R. Pradeep, B.S. Praveen Kumar, B. Prashanth, Evaluation of mechanical properties of aluminium alloy 7075 reinforced with silicon carbide and red mud composite. Int. J. Eng. Res. Gen. Sci. 2(6), 1081–1088 (2014)Google Scholar
  10. 10.
    J.S. Sureshbabu, P.K. Nair, C.G. Kang, Fabrication and characterisation of aluminium-based nano-micro hybrid metal matrix composites, in 16th International conference on composite materials, pp. 1–5 (2007)Google Scholar
  11. 11.
    J. Hashim, L. Looney, M.S.J. Hashmi, Metal matrix composites: production by the stir casting method. J. Mater. Process. Technol. 92–93, 1–7 (1999)CrossRefGoogle Scholar
  12. 12.
    X.P. Zhang, L. Ye, Y.W. Mai, G.F. Quan, W. Wei, Investigation on diffusion bonding characteristics of SiC particulate reinforced aluminium metal matrix composites (Al/SiCp-MMC). Compos. Part A Appl. Sci. Manuf. 30, 1415–1421 (1999)CrossRefGoogle Scholar
  13. 13.
    B.N. Sarada, P.L. Srinivasa Muthy, G. Ugrasen, Hardness and wear characteristics of hybrid aluminium metal matrix composites produced by stir casting technique. Mater. Today Proc. 2, 2878–2885 (2015)CrossRefGoogle Scholar
  14. 14.
    S.M. Choi, H. Awaji, Nano composite—a new material design concept. Sci. Technol. Adv. Mater. 6, 2–10 (2005)CrossRefGoogle Scholar
  15. 15.
    Kenneth Kanayo Alaneme, Kazeem Oladiti Sanusi, Microstructural characteristics, mechanical and wear behaviour of aluminium matrix hybrid composites reinforced with alumina, rice husk ash, and graphite. Eng. Sci. Technol. Int. J. 18, 416–422 (2015)CrossRefGoogle Scholar
  16. 16.
    Pardeep Sharma, Satpal Sharma, Dinesh Khanduja, Production and some properties of Si3N4 reinforced aluminium alloy composites. J. Asian Ceram. Soc. 3, 352–359 (2015)CrossRefGoogle Scholar
  17. 17.
    G.B. Veeresh Kumar, C.S.P. Rao, N. Selvarajhttp, Mechanical and tribological behavior of particulate reinforced aluminum metal matrix composites—a review. J. Miner. Mater. Charact. Eng. 10(1), 59–91 (2011)Google Scholar
  18. 18.
    Weiping Chen, Yixiong Liu, Chao Yang, Dezhi Zhu, Yuanyuan Li, (SiCp+Ti)/7075 Al hybrid composites with high strength and great plasticity fabricated by squeeze casting. Mater. Sci. Eng. A 609, 250–254 (2014)CrossRefGoogle Scholar
  19. 19.
    M.H. Rahman, H.M.M. Al Rashed, Characterization of silicon carbide reinforced aluminium matrix composites. Procedia Eng. 90, 103–109 (2014)CrossRefGoogle Scholar
  20. 20.
    Z.H.A.O. Jia-lei, J.I.E. Jin-chuan, Fei Chen, Hang Chen, L.I. Ting-ju, C.A.O. Zhi-qiang, Effect of immersion Ni plating on interface microstructure and mechanical properties of Al/Cu bimetal. Trans. Nonferr. Met. Soc. China 24, 1659–1665 (2014)CrossRefGoogle Scholar
  21. 21.
    G.B.V. Kumar, C.S.P. Rao, N. Selvaraj, M.S. Bhagyashekar, Studies on Al6061-SiC and Al7075-Al2O3 metal matrix composites. J. Miner. Mater. Charact. Eng. 9, 43–55 (2010)Google Scholar
  22. 22.
    S.A. Sajjadi, H.R. Ezatpour, M.T. Parizi, Comparison of microstructure and mechanical properties of A356 aluminium alloy/Al2O3 composites fabricated by the stir and compo-casting processes. Mater. Des. 34, 106–111 (2012)CrossRefGoogle Scholar

Copyright information

© The Institution of Engineers (India) 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringJawaharlal Nehru Technological UniversityAnanthapuramuIndia
  2. 2.Department of Mechanical EngineeringMadanapalle Institute of Technology and ScienceChittoorIndia

Personalised recommendations