Microstructural characteristics and mechanical behaviour of aluminium hybrid composites reinforced with groundnut shell ash and B4C

  • L. VenkateshEmail author
  • T. V. Arjunan
  • K. Ravikumar
Technical Paper


In this study, aluminium hybrid composites were fabricated by reinforcing eco-friendly agrowaste, groundnut shell ash and boron carbide using squeeze casting method. Groundnut shell ash and boron carbide were added in ratios of 2.5:7.5, 5:5 and 7.5:2.5 percentages by weight. The impact on mechanical properties namely density, hardness, tensile strength, impact strength was studied, and the results were compared with the matrix alloy. The fracture mechanism of tensile and impact specimens were studied by scanning electron microscopy. Microstructural study reveals the uniform distribution and good bonding of reinforcements with clear interface in the hybrid composite. The hardness and tensile strength increased up to a maximum of 17% and 18.32%, respectively, and then slightly decreased while increasing groundnut shell ash particles. Increasing groundnut shell ash particles in hybrid composites decreases the impact strength and density to a maximum of 12% and 7.5%. Dimples, voids, cracks, clusters and particle fracture are characterised by fracture mechanism. Brittle fractures in the form of cracks, and particle fractures were formed due to the solid interfacial bonding between the reinforcements and alloy. Ductile fractures are the reason for high impact strength and are characterised by dimples and voids. The eco-friendly groundnut shell ash has the potential to serve as reinforcement for the development of composites.


Hybrid composite Squeeze casting Groundnut shell ash Boron carbide Mechanical properties Microstructure 



  1. 1.
    Azarbarmas M, Emamy M, Alipour M (2013) Microstructure, hardness and tensile properties of A380 aluminum alloy with and without Li additions. Mater Sci Eng A 582:409–414Google Scholar
  2. 2.
    Zhang P, Li Z, Liu B, Ding W (2017) Tensile properties and deformation behaviors of a new aluminum alloy for high pressure die casting. J Mater Sci Technol 33(4):367–378Google Scholar
  3. 3.
    Otarawanna S, Dahle AK (2011) Casting of aluminium alloys. In: Fundamentals of aluminium metallurgy. Woodhead Publishing, Oxford, UK, pp 141–154Google Scholar
  4. 4.
    Mohammadpour M, Khosroshahi RA, Mousavian RT, Brabazon D (2015) A novel method for incorporation of micron-sized SiC particles into molten pure aluminum utilizing a Co coating. Metall Mater Trans B 46(1):12–19Google Scholar
  5. 5.
    Arora G, Sharma S (2017) A review on monolithic and hybrid metal–matrix composites reinforced with industrial-agro wastes. J Braz Soc Mech Sci Eng 39(11):4819–4835Google Scholar
  6. 6.
    Ravindranath VM, Shankar GS, Basavarajappa S, Kumar NS (2017) Dry sliding wear behavior of hybrid aluminum metal matrix composite reinforced with Boron carbide and graphite particles. Mater Today Proc 4(10):11163–11167Google Scholar
  7. 7.
    Lokesh T, Mallik US (2017) Dry sliding wear behavior of Al/Gr/SiC hybrid metal matrix composites by Taguchi techniques. Mater Today Proc 4(10):11175–11180Google Scholar
  8. 8.
    Murthy KS, Girish DP, Keshavamurthy R, Varol T, Koppad PG (2017) Mechanical and thermal properties of AA7075/TiO2/Fly ash hybrid composites obtained by hot forging. Progress Nat Sci Mater Int 27(4):474–481Google Scholar
  9. 9.
    Anitha P, Balraj US (2017) Dry sliding wear performance of Al/7075/Al2O3p/Grp hybrid metal matrix composites. Mater Today Proc 4(2):3033–3042Google Scholar
  10. 10.
    Ravikumar AR, Amirthagadeswaran KS, Senthil P (2014) Parametric optimization of squeeze cast AC2A–Ni coated SiCp composite using Taguchi technique. Adv Mater Sci Eng 2014:160519Google Scholar
  11. 11.
    Alaneme KK, Sanusi KO (2015) 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(3):416–422Google Scholar
  12. 12.
    Fatile OB, Akinruli JI, Amori AA (2014) Microstructure and mechanical behaviour of stir-cast Al-Mg-Sl alloy matrix hybrid composite reinforced with corn cob ash and silicon carbide. Int J Eng Technol Innov 4(4):251–259Google Scholar
  13. 13.
    Alaneme KK, Adewuyi EO (2013) Mechanical behaviour of Al-Mg-Si matrix composites reinforced with alumina and bamboo leaf ash. Metall Mater Eng 19(3):177–188Google Scholar
  14. 14.
    Kannan C, Ramanujam R (2017) Comparative study on the mechanical and microstructural characterisation of AA 7075 nano and hybrid nanocomposites produced by stir and squeeze casting. J Adv Res 8(4):309–319Google Scholar
  15. 15.
    Alaneme KK, Ajayi OJ (2017) Microstructure and mechanical behavior of stir-cast Zn–27Al based composites reinforced with rice husk ash, silicon carbide, and graphite. J King Saud Univ Eng Sci 29(2):172–177Google Scholar
  16. 16.
    Dwivedi SP, Sharma S, Mishra RK (2015) Microstructure and mechanical behavior of A356/SiC/Fly-ash hybrid composites produced by electromagnetic stir casting. J Braz Soc Mech Sci Eng 37(1):57–67Google Scholar
  17. 17.
    Alaneme KK, Adewale TM (2013) Influence of rice husk ash–silicon carbide weight ratios on the mechanical behaviour of Al-Mg-Si alloy matrix hybrid composites. Tribol Ind 35(2):163–172Google Scholar
  18. 18.
    Singla YK, Chhibber R, Bansal H, Kalra A (2015) Wear behavior of aluminum alloy 6061-based composites reinforced with SiC, Al 2 O 3, and red mud: a comparative study. JOM 67(9):2160–2169Google Scholar
  19. 19.
    Sharma P, Khanduja D, Sharma S (2015) Production of hybrid composite by a novel process and its physical comparison with single reinforced composites. Mater Today Proc 2(4–5):2698–2707Google Scholar
  20. 20.
    Prasad DS, Shoba C, Ramanaiah N (2014) Investigations on mechanical properties of aluminum hybrid composites. J Mater Res Technol 3(1):79–85Google Scholar
  21. 21.
    Alaneme KK, Bodunrin MO, Awe AA (2016) Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites. J King Saud Univ Eng Sci 30:96–103Google Scholar
  22. 22.
    Apasi A, Madakson PB, Yawas DS, Aigbodion VS (2012) Wear behaviour of Al-Si-Fe alloy/coconut shell ash particulate composites. Tribol Ind 34(1):36–43Google Scholar
  23. 23.
    Naidu AL, Sudarshan B, Krishna KH (2013) Study on mechanical behavior of groundnut shell fiber reinforced polymer metal matrix composities. Int J Eng Res Technol 2:2Google Scholar
  24. 24.
    Buari TA, Ademola SA, Ayegbokiki ST (2013) Characteristics Strength of groundnut shell ash (GSA) and Ordinary Portland cement (OPC) blended Concrete in Nigeria. IOSR J Eng (IOSRJEN) 3(7):1–7Google Scholar
  25. 25.
    Okayasu M, Ota K, Takeuchi S, Ohfuji H, Shiraishi T (2014) Influence of microstructural characteristics on mechanical properties of ADC12 aluminum alloy. Mater Sci Eng, A 592:189–200Google Scholar
  26. 26.
    Okayasu M, Ohkura Y, Takeuchi S, Takasu S, Ohfuji H, Shiraishi T (2012) A study of the mechanical properties of an Al–Si–Cu alloy (ADC12) produced by various casting processes. Mater Sci Eng, A 543:185–192Google Scholar
  27. 27.
    Alaneme KK, Fatile BO, Borode JO (2014) Mechanical and corrosion behaviour of Zn-27A1 based composites reinforced with groundnut shell ash and silicon carbide. Tribol Ind 36(2):195–203Google Scholar
  28. 28.
    Singh J, Suri NM, Verma A (2015) Affect of mechanical properties on groundnut shell ash reinforced AL6063. Int J Technol Res Eng 2:2619–2623Google Scholar
  29. 29.
    Toptan F, Kilicarslan A, Karaaslan A, Cigdem M, Kerti I (2010) Processing and microstructural characterisation of AA 1070 and AA 6063 matrix B4Cp reinforced composites. Mater Des 31:S87–S91Google Scholar
  30. 30.
    Jung J, Kang S (2004) Advances in manufacturing boron carbide-aluminum composites. J Am Ceram Soc 87(1):47–54Google Scholar
  31. 31.
    Sharifi EM, Karimzadeh F, Enayati MH (2011) Fabrication and evaluation of mechanical and tribological properties of boron carbide reinforced aluminum matrix nanocomposites. Mater Des 32(6):3263–3271Google Scholar
  32. 32.
    Ramnath BV, Elanchezhian C, Jaivignesh M, Rajesh S, Parswajinan C, Ghias ASA (2014) Evaluation of mechanical properties of aluminium alloy–alumina–boron carbide metal matrix composites. Mater Des 58:332–338Google Scholar
  33. 33.
    Saravanan SD, Senthilkumar M (2014) Mechanical behavior of aluminum (AlSi10 Mg)-RHA composite. Int J Eng Technol 5(6):4834–4840Google Scholar
  34. 34.
    Alaneme KK, Akintunde IB, Olubambi PA, Adewale TM (2013) Fabrication characteristics and mechanical behaviour of rice husk ash–Alumina reinforced Al-Mg-Si alloy matrix hybrid composites. J Mater Res Technol 2(1):60–67Google Scholar
  35. 35.
    Prasad DS, Krishna AR (2012) Tribological properties of A356.2/RHA composites. J Mater Sci Technol 28(4):367–372MathSciNetGoogle Scholar
  36. 36.
    Gladston JAK, Sheriff NM, Dinaharan I, Selvam JDR (2015) Production and characterization of rich husk ash particulate reinforced AA6061 aluminum alloy composites by compocasting. Trans Nonferrous Metals Soc China 25(3):683–691Google Scholar
  37. 37.
    Manjunath Patel GC, Krishna P, Parappagoudar MB (2016) Modelling and multi-objective optimisation of squeeze casting process using regression analysis and genetic algorithm. Aust J Mech Eng 14(3):182–198Google Scholar
  38. 38.
    Ravikumar K, Kiran K, Sreebalaji VS (2017) Characterization of mechanical properties of aluminium/tungsten carbide composites. Measurement 102:142–149Google Scholar
  39. 39.
    Kumar KR, Kiran K, Sreebalaji VS (2017) Micro structural characteristics and mechanical behaviour of aluminium matrix composites reinforced with titanium carbide. J Alloys Compd 723:795–801Google Scholar
  40. 40.
    Kumar BP, Birru AK (2017) Microstructure and mechanical properties of aluminium metal matrix composites with addition of bamboo leaf ash by stir casting method. Trans Nonferrous Metals Soc China 27(12):2555–2572Google Scholar
  41. 41.
    Rao JB, Rao DV, Murthy IN, Bhargava NRMR (2012) Mechanical properties and corrosion behaviour of fly ash particles reinforced AA 2024 composites. J Compos Mater 46(12):1393–1404Google Scholar
  42. 42.
    Alaneme KK, Ademilua BO, Bodunrin MO (2013) Mechanical properties and corrosion behaviour of aluminium hybrid composites reinforced with silicon carbide and bamboo leaf ash. Tribol Ind 35(1):25–35Google Scholar
  43. 43.
    Rajan TPD, Pillai RM, Pai BC, Satyanarayana KG, Rohatgi PK (2007) Fabrication and characterisation of Al–7Si–0.35 Mg/fly ash metal matrix composites processed by different stir casting routes. Compos Sci Technol 67(15–16):3369–3377Google Scholar
  44. 44.
    Surappa MK (2008) Dry sliding wear of fly ash particle reinforced A356 Al composites. Wear 265(3–4):349–360Google Scholar
  45. 45.
    Surappa MK (2008) Synthesis of fly ash particle reinforced A356 Al composites and their characterization. Mater Sci Eng, A 480(1–2):117–124Google Scholar
  46. 46.
    Prasad DS, Krishna AR (2011) Production and mechanical properties of A356.2/RHA composites. Int J Adv Sci Technol 33:51–58Google Scholar
  47. 47.
    Prasad N, Sutar H, Mishra SC, Sahoo SK, Acharya SK (2013) Dry sliding wear behavior of aluminium matrix composite using red mud an industrial waste. Int Res J Pure Appl Chem 3(1):59–74Google Scholar
  48. 48.
    Usman AM, Raji A, Waziri NH, Hassan MA (2014) Aluminium alloy-rice husk ash composites production and analysis. Leonardo Electron J Pract Technol 25:84–98Google Scholar
  49. 49.
    Hu X, Jiang F, Ai F, Yan H (2012) Effects of rare earth Er additions on microstructure development and mechanical properties of die-cast ADC12 aluminum alloy. J Alloys Compd 538:21–27Google Scholar
  50. 50.
    Ahmadi A, Toroghinejad MR, Najafizadeh A (2014) Evaluation of microstructure and mechanical properties of Al/Al2O3/SiC hybrid composite fabricated by accumulative roll bonding process. Mater Des 53:13–19Google Scholar
  51. 51.
    Kumarasamy SP, Vijayananth K, Thankachan T, Muthukutti GP (2017) Investigations on mechanical and machinability behavior of aluminum/flyashcenosphere/Gr hybrid composites processed through compocasting. J Appl Res Technol 15(5):430–441Google Scholar
  52. 52.
    Usman AM, Raji A, Hassan MA, Waziri NH (2014) A comparative study on the properties of Al-7% Si-Rice husk ash and Al-7% Si-Bagasse ash composites produced by stir casting. Int J Eng Sci 3(8):1–7Google Scholar
  53. 53.
    Singh J, Chauhan A (2017) Fabrication characteristics and tensile strength of novel Al2024/SiC/red mud composites processed via stir casting route. Trans Nonferrous Metals Soc China 27(12):2573–2586Google Scholar
  54. 54.
    Lancaster L, Lung MH, Sujan D (2013) Utilization of agro-industrial waste in metal matrix composites: towards sustainability. Int J Environ Ecol Geomatics Earth Sci Eng 7(1):25–43Google Scholar
  55. 55.
    Aigbodion VS (2012) Development of Al-Si-Fe/Rice husk ash particulate composites synthesis by double stir casting method. USAK Univ J Mater Sci 1(2):187–197Google Scholar
  56. 56.
    Arulraj M, Palani PK (2018) Parametric optimization for improving impact strength of squeeze cast of hybrid metal matrix (LM24–SiC p–coconut shell ash) composite. J Braz Soc Mech Sci Eng 40(1):2Google Scholar
  57. 57.
    Mahendra KV, Radhakrishna K (2007) Fabrication of Al–4.5% Cu alloy with fly ash metal matrix composites and its characterization. Mater Sci 25(1):57–68Google Scholar

Copyright information

© The Brazilian Society of Mechanical Sciences and Engineering 2019

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringCoimbatore Institute of Engineering and TechnologyCoimbatoreIndia
  2. 2.Department of Mechanical EngineeringDr.N.G.P Institute of TechnologyCoimbatoreIndia

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