Influence of Ni addition and heat treatment on phase transformation temperatures and microstructures of a ternary CuAlCr alloy

  • F. DagdelenEmail author
  • M. A. K. Aldalawi
  • M. Kok
  • I. N. Qader
Regular Article


In this paper, Cu85Al12Cr3 and Cu83Al12Cr3Ni2 (wt. %) high temperature shape memory alloys (HTSMA) were fabricated from highly pure powder elements by using an arc melter. After production, some pieces of alloys were subjected to heat treatment at 1073K for one hour. Then, Differential Scanning Calorimeter (DSC), Optical Microscopy (OM), X-Ray Diffraction (XRD), Vickers microhardness, and Scanning Electron Microscopy (SEM) analyses were carried out to investigate thermodynamic parameters, microstructure, crystal structure, mechanic properties, and to determine precipitation types in non-heat-treated and heat-treated alloys, respectively. According to the results of DSC measurements, both alloys showed a high temperature shape memory effect; also, the phase transformation temperatures of the alloys were affected by the heat treatment. The analysis of XRD patterns showed two different predominant microstructures in both alloys, i.e.\(\gamma^{\prime}_{1}\) and \(\beta^{\prime}_{1}\) phases. Moreover, microstructural results showed the influence of Ni additive in decreasing the size of the grains and the number of the precipitates. In addition, micro-hardness, as a mechanic property, decreased through adding Ni to the CuAlCr alloy.


  1. 1.
    S.N. Saud et al., Metall. Mater. Trans. A 47, 5242 (2016)CrossRefGoogle Scholar
  2. 2.
    I.N. Qader, M. Kök, F. Dağdelen, Physica B 553, 1 (2018)ADSCrossRefGoogle Scholar
  3. 3.
    K. Otsuka, C.M. Wayman, Shape Memory Materials (Cambridge University Press, 1999)Google Scholar
  4. 4.
    F. Dagdelen et al., Mater. Lett. 57, 1079 (2003)CrossRefGoogle Scholar
  5. 5.
    Y. Aydoğdu et al., J. Phys.: Conf. Ser. 667, 012010 (2016)Google Scholar
  6. 6.
    R. Dasgupta et al., J. Mater. Res. Technol. 3, 264 (2014)CrossRefGoogle Scholar
  7. 7.
    G. Firstov, J. Van Humbeeck, Y.N. Koval, J. Intell. Mater. Syst. Struct. 17, 1041 (2006)CrossRefGoogle Scholar
  8. 8.
    D. Stoeckel, Mater. Design 11, 302 (1990)CrossRefGoogle Scholar
  9. 9.
    S.N. Saud et al., J. Therm. Anal. Calorim. 118, 111 (2014)CrossRefGoogle Scholar
  10. 10.
    S. Saud et al., Trans. Nonferr. Metals Soc. China 25, 1158 (2015)CrossRefGoogle Scholar
  11. 11.
    W.Y. Ci et al., J. Mech. Eng. Sci. 11, 2770 (2017)CrossRefGoogle Scholar
  12. 12.
    S.N. Saud et al., J. Alloys Compd. 612, 471 (2014)CrossRefGoogle Scholar
  13. 13.
    S.N. Saud et al., J. Therm. Anal. Calorim. 119, 1273 (2015)CrossRefGoogle Scholar
  14. 14.
    S. Vajpai, R. Dube, S. Sangal, Mater. Sci. Eng. A 570, 32 (2013)CrossRefGoogle Scholar
  15. 15.
    M.A.K. Al-Dalawi, Fabrication of Cu Based HTSMAs and Investigation of Their Physical Properties, in Physics (Firat University, 2017)Google Scholar
  16. 16.
    F. Dağdelen et al., Eur. Phys. J. Plus 131, 196 (2016)CrossRefGoogle Scholar
  17. 17.
    S. Buytoz et al., J. Therm. Anal. Calorim. 117, 1277 (2014)CrossRefGoogle Scholar
  18. 18.
    I. Somunkiran, S. Buytoz, F. Dagdelen, J. Alloys Compd. 777, 302 (2019)CrossRefGoogle Scholar
  19. 19.
    M. Zare, M. Ketabchi, J. Therm. Anal. Calorim. 127, 2113 (2017)CrossRefGoogle Scholar
  20. 20.
    A. Pandey et al., Metall. Mater. Trans. B 47, 2205 (2016)CrossRefGoogle Scholar
  21. 21.
    C. Wang et al., Smart Mater. Struct. 23, 025018 (2013)ADSCrossRefGoogle Scholar
  22. 22.
    S.N. Balo, N. Sel, Thermochim. Acta 536, 1 (2012)CrossRefGoogle Scholar
  23. 23.
    Y. Sutou et al., Acta Mater. 57, 5759 (2009)CrossRefGoogle Scholar
  24. 24.
    N. Suresh, U. Ramamurty, Mater. Sci. Eng. A 454, 492 (2007)CrossRefGoogle Scholar
  25. 25.
    U. Sari et al., Int. J. Miner., Metall., Mater. 18, 430 (2011)CrossRefGoogle Scholar
  26. 26.
    N. Suresh, U. Ramamurty, J. Alloys Compd. 449, 113 (2008)CrossRefGoogle Scholar

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© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Firat University, Faculty of Science, Department of PhysicsElazigTurkey
  2. 2.University of Raparin, College of Science, Department of PhysicsSulaimanyahIraq

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