Cover
Vol. 21 No. 3 (2021)

Published: October 31, 2021

Pages: 42-49

Original Article

Effect of Ag Nanoparticles Addition on the Microstructure of Cu-21%Zn-6%Al Shape Memory Alloys

Zainab Salim Abd Alhassan 1 Murtadha Abbas Jabbar 1
1 Department of Mechanical Engineering, College of Engineering, University of Basrah, Basrah, Iraq
History
  • Received: August 22, 2021
  • Revised: September 6, 2021
  • Accepted: September 11, 2021
  • Available Online: October 5, 2021
DOI

https://doi.org/10.33971/bjes.21.3.5

Abstract

This paper aims to investigate the effect of Ag nanoparticles addition in different percentages (0.12 wt. %, 0.15 wt. %, 0.25 wt. %, 0.35 wt. %) on the microstructure properties of Cu-21%Zn-6%Al shape memory alloy. Optical and SEM were carried out to studied such effects. Two heat treatments were carried out at (825 ℃ and 850 ℃) for 10 min and quenched in ice water. It was observed that both of heat treatment lead to formation M18R martensite with V-shape and needle like, but raising the temperature of heat treatment from 825 ℃ to 850 ℃ lead to a decrease formation α phase, which leads to improving the shape memory properties. Refinement of the grain size resulted as Ag nanoparticles addition increased from 0 to 0.25 wt. %, the grain size decreases from 1551 μm to 212 μm with reduction of 86.32 wt. % at 0.25 wt. % Ag. The microstructure observation indicated that the Ag nanoparticles addition leads to creating a multi-variant oriented martensite microstructure after quenching process in ice water.

Keywords

References

  1. B. N. Guniputi and S. M. Murigendrappa, “Influence of Gd on the microstructure, mechanical and shape memory properties of Cu-Al-Be polycrystalline shape memory alloy”, Materials Science and Engineering: A, Vol. 737, pp. 245-252, 2018.
  2. C. Chanmuang, S. Niyomsoan, and N. Chomsaeng, “Effect of indium in Cu-Zn-Al shape memory alloys”, Journal of Physics: Conf. Series, Vol. 1082, pp. 1-6, 2018.
  3. K. Mehta and K. Gupta, Fabrication and Processing of Shape Memory Alloys, Springer, 2018.
  4. A. Rao, A. R. Srinivasa, and J. N. Reddy, Design of shape memory alloy (SMA) actuators, Springer 2015.
  5. K. K. Alaneme, E. A. Okotete, and N. Maledi, “Phase characterisation and mechanical behaviour of Fe-B modified Cu-Zn-Al shape memory alloys”, Journal of Materials Research and Technology, Vol. 6, Issue 2, pp. 136-146, 2017. https://doi.org/10.1016/j.jmrt.2016.10.003
  6. G. Saha, M. Ghosh, A. Antony, and K. Biswas, “Ageing Behaviour of Sc-Doped Cu–Zn–Al Shape Memory Alloys”, Arabian Journal for Science and Engineering, Vol. 44, pp. 1569-1581, 2019.
  7. Y. S. Han and Y. G. Kim, “The effects of boron and aging on mechanical properties and martensitic temperatures in CuZnAl shape-memory alloys”, Scripta. Metallurgica, Vol. 21, Issue 7, pp. 947-952, 1987.
  8. H. W. Kim, “Investigation of a Cu-Zn-AI alloy with twoway shape memory effect by the cycled constrained heating/cooling technique”, Journal of Materials Science, Vol. 40, pp. 211-212, 2005.
  9. W. H. Zou, C. W. H. Lam, C. Y. Chung, and J. K. L. Lai, “Microstructural studies of a Cu-Zn-Al shape-memory alloy with manganese and zirconium addition”, Metallurgical and Materials Transactions A, Vol. 29, pp. 1865-1871, 1998.
  10. J. W. Xu, “Effects of Gd addition on microstructure and shape memory effect of Cu-Zn-Al alloy”, Journal of Alloys and Compounds, Vol. 448, Issues 1-2, pp. 331-335, 2008.
  11. A. K. Bhuniya, P. P. Chattopadhyay, S. Datta, and M. K. Banerjee, “Study on the effect of trace zirconium addition on the microstructural evolution in Cu-Zn-Al shape memory alloy”, Materials Science and Engineering: A, Vol. 391, Issues 1-2, pp. 34-42, 2005.
  12. G. S. YANG, J. K. LEE, and W. Y. JANG, “Effect of grain refinement on phase transformation behavior and mechanical properties of Cu-based alloy”, Transactions of Nonferrous Metals Society of China, Vol. 19, Issue 4, pp. 979-983, 2009.
  13. K. K. Alaneme and S. Umar, “Mechanical behaviour and damping properties of Ni modified Cu-Zn-Al shape memory alloys”, Journal of Science: Advanced Materials and Devices, Vol. 3, Issue 3, pp. 371-379, 2018.
  14. T. W. Duerig and K. N. Melton, Engineering Aspects of Shape Memory Alloys, 1990.
  15. M. O. Lai, L. Lu and W. H. Lee, “Influence of heat treatment on properties of copper-based shape-memory alloy”, Journal of Materials Science, Vol. 31, pp. 15371543, 1996.
  16. ASTM E3-11, “Standard Guide for Preparation of Metallographic Specimens 1”, 2011.
  17. ASTM E407, “Standard Practice for Microetching Metals and Alloys 1”, 2015.
  18. Z. Stošić, D. Manasijević, L. Balanović, T. HoljevacGrgurić, U. Stamenković, Milena Premovićc, Duško Minićc, Milan Gorgievskia, and R. Todorović, “Effects of composition and thermal treatment of Cu-Al-Zn alloys with low content of Al on their shape-memory properties”, Materials Research, Vol. 20, No. 5, pp. 1425-1431, 2017.
  19. E. Aldirmaz, H. Celik, and I. Aksoy, “SEM and X-ray diffraction studies on microstructures in Cu-26.04%Zn4.01%Al alloy”, Acta Physica Polonica A, Vol. 124, No. 1, pp. 87-89, 2013.
  20. X. Cheng, F. Huang, N. Li, and X. Wu, “Microstructure and shape memory effect of Cu-26.1Zn-4.8Al alloy”, Journal of Wuhan University of Technology-Mater. Sci. Ed., Vol. 23, pp. 717-719, 2008.
  21. R. D. Dar, H. Yan, and Y. Chen, “Grain boundary engineering of Co-Ni-Al, Cu-Zn-Al, and Cu-Al-Ni shape memory alloys by intergranular precipitation of a ductile solid solution phase”, Scripta Materialia, Vol. 115, pp. 113-117, 2016.