Effects of Graphene Content and Aging Process on Mechanical Properties and Corrosion Performance of an A356.2 Aluminum Matrix Composite

  • Kang Wang
  • Jinfeng LengEmail author
  • Ran Wang
  • Shaochen Zhang
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 217)


A356.2 aluminum alloy is widely used in the aerospace and automotive industries due to its superior casting ability, high specific strength, and corrosion resistance. Graphene is used in aluminum-based composites for its excellent mechanical properties and unique two-dimensional structure. In this paper, graphene and aluminum powder were mixed uniformly and then graphene-reinforced A356.2 aluminum matrix composites were prepared by atmospheric casting. Research results showed that the hardness change in the age hardening process tended to be faster and then slower. With the increase of graphene content, the peak-aging time of Gr/A356.2 aluminum matrix composites was shortened and the hardness value increased. The peak-hardness was 126HB when aged at 180 °C for 3 h. The addition of graphene improved the pitting resistance of A356.2 aluminum matrix composites in 3.5 wt% NaCl solution, mainly showing the positive shift of pitting potential and the decrease of corrosion current density. The composites under different aging conditions exhibited similar polarization characteristics, indicating the heat treatment not change the electrochemical corrosion behavior of the composites, while the pitting corrosion resistance under the underage condition was the best. The pitting potential was −0.735 V and the passivation region was the longest at 0.617 V. This was mainly because the second-phase precipitates increased with the aging time, subsequently, more interfaces between the second-phase precipitates and the aluminum alloy supplied the prior sites for pitting.


A356.2 Graphene Aging progress Corrosion performance Metal matrix composites 



The present work was supported by the Shandong Provincial Natural Science Foundation, China (ZR2018LE001).


  1. 1.
    S. Kumar, D. Kumar, Manufacturing aluminium composites materials using stir casting process: challenges and opportunities. Int. J. Eng. Res. Technol. 4, 19–22 (2015)Google Scholar
  2. 2.
    S. Gajalakshmi, K. Sriram, Investigation of mechanical behavior of ultra light weight nano composite for aero-crafts. Int. J. Sci. Res. 4, 1892–1895 (2015)Google Scholar
  3. 3.
    J. Wu, C.C. Lee, The growth and tensile deformation behavior of the silver solid solution phase with zinc. Mater. Sci. Eng., A 668, 160–165 (2016)CrossRefGoogle Scholar
  4. 4.
    F. Mao, G. Yan, Z. Xuan et al., Effect of Eu addition on the microstructures and mechanical properties of A356 aluminum alloys. J. Alloy. Compd. 650, 896–906 (2015)CrossRefGoogle Scholar
  5. 5.
    S.J. Hong, H.M. Kim, D. Huh et al., Effect of clustering on the mechanical properties of SiC particulate-reinforced aluminum alloy 2024 metal matrix composites. Mater. Sci. Eng., A 347(1–2), 198–204 (2003)CrossRefGoogle Scholar
  6. 6.
    J. Llorca, J.L. Martínez, M. Elices, Reinforcement fracture and tensile ductility in sphere-reinforced metal-matrix composites. Fatigue Fract. Eng. Mater. Struct. 20(5), 689–702 (1997)CrossRefGoogle Scholar
  7. 7.
    Abdelkader, H., Yousef, L., Amer, A., Mayer, J., Schwedt, A.: Influence of Al2O3 nano-dispersions on microstructure features and mechanical properties of cast and T6 heat-treated Al Si hypoeutectic alloys. Mater. Sci. Eng. A 556, 76–87 (2012)Google Scholar
  8. 8.
    I.S. El-Mahallawi, Y. Shash, K. Eigenfeld, T.S. Mahmoud, R.M. Ragaie, A.Y. Shash et al., Influence of nanodispersions on strength ductility properties of semisolid cast A356 Al alloy. Mater Sci. J. 26(10), 1226–1231 (2010)Google Scholar
  9. 9.
    S. Stankovich, D.A. Dikin, G.H.B. Dommett, K.M. Kohlhaas, E.J. Zimney, E.A. Stach, Graphene-based composite materials. 446, 282–286 (2006)Google Scholar
  10. 10.
    C. Lee, X. Wei, J.W. Kysar et al., Measurement of the elastic properties and intrinsic strength of monolayer graphene. Science 321(5887), 385–388 (2008)CrossRefGoogle Scholar
  11. 11.
    A.A. Balandin, S. Ghosh, W. Bao, I. Calizo, D. Teweldebrhan, F. Miao, C.N. Lau, Extremely high thermal conductivity of graphene: experimental study. 8, 902–907 (2008)Google Scholar
  12. 12.
    K.I. Bolotin, K.J. Sikes, Z. Jiang et al., Ultrahigh electron mobility in suspended graphene. Solid State Commun. 146(9), 351–355 (2008)CrossRefGoogle Scholar
  13. 13.
    C. Nitu, A. Dumitrascu, V.F. Krapivin et al., Effects of solution heat treatment on microstructure and corrosion properties of 7050 Al alloy. J. Aeronaut. Mater. 33(4), 2663–2670 (2013)Google Scholar
  14. 14.
    S.D. Kumar, A. Mandal, M. Chakraborty, On the age hardening behavior of thixoformed A356–5TiB 2 in-situ, composite. Mater. Sci. Eng., A 636, 254–262 (2015)CrossRefGoogle Scholar
  15. 15.
    J. Wang, Z. Li, G. Fan, H. Pan, Z. Chen, Zhang, Reinforcement with graphene nanosheets in aluminum matrix composites. Scripta Mater. 66(8), 594–597 (2012)CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Kang Wang
    • 1
  • Jinfeng Leng
    • 1
    Email author
  • Ran Wang
    • 1
  • Shaochen Zhang
    • 1
  1. 1.School of Materials Science and EngineeringUniversity of JinanJinanPeople’s Republic of China

Personalised recommendations