Home » Measurement of Mechanical Properties and Microstructure of Cu-Ni-Cr Spinodal Alloy

Measurement of Mechanical Properties and Microstructure of Cu-Ni-Cr Spinodal Alloy

Sagar C. Jirapure 

Dept. of. Mechanical Engineering, JD Institute of Engineering & Technology, Yavatmal –445001, MS, India
email: sagarjirapure@rediffmail.com

Atul B. Borade

Dept. of. Mechanical Engineering, JD Institute of Engineering & Technology, Yavatmal –445001, MS, India


The objective of the present examination is to learn the microstructure of copper-nickel-chromium spinodal alloy and its outcome on mechanical properties. A commercially important Cu-28.9%Ni-2.8%Cr alloy has been heat treated to create spinodal structures. Optical and transmission electron microscopic revision have been carried to learn the spinodally decomposed product and to compute the wavelengths in the sampling. The lattice imaging system of high-resolution electron microscopy is useful to investigate the compositional fluctuations in this alloy. Homogenized and solution treated samples were aged at various temperatures for unlike phase of time. The correlation of mechanical properties with microstructure then demonstrates a dependence of yield stress growth on lattice parameter change between the two phases.


Cu-Ni-Cr alloy, heat treatment, Spinodal decomposition, microstructure, hardness.

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Cited as

Sagar Jirapure and Atul Borade, “Measurement Of Mechanical Properties And Microstructure Of Cu-Ni-Cr Spinodal Alloy,” International Journal of Advanced Engineering and Management, Vol. 2, No. 3, pp.78-81,  2017.


  1. M. Kato, L.H. Schwartz, “The Temperature Dependence of Yield Stress and Work Hardening in Spinodally Decomposed Cu-10Ni-6Sn Alloy,” Materials Science and Engineering vol. 41, no. 1, pp. 137-142, 1979.
  2. M. Hillert, Thesis MIT, 1956.
  3. M. Hillert, Acta Metall, vol. 9, pp. 525-535, 1961.
  4. J.W. Cahn, Acta Metall vol. 9, pp. 795-801, 1961.
  5. J.W. Cahn, Acta Metall. vol. 10, pp. 179-183, 1962a.
  6. E. G. Baburaj, U.D. Kulkarni, E. S. K. Menon, R. Krishnan, “Initial stages of decomposition in Cu-9Ni-6Sn,” Journal of Applied Crystallography, vol. 12 no. 5, pp. 476-480, 1979.
  7. A. Chou, A. Datta, G. H. Meier, W. A. Soffa, “Microstructural Behaviour and Mechanical Hardening in a Cu-Ni-Cr Alloy,” J. Mater. Sci., vol. 13, pp. 541-552, 1978 CrossRef.
  8. C.M.F. Jantzen, H. Herman, Ed. Allen M. Alper, “Phase diagrams,” Materials Science and Technology, Vol. 6, pp. 127- 184, Academic Press New York, 1978.
  9. S. Ilangovan, and R. Sellamuthu, “Measurement Of The Variation Of Mechanical Properties With Aging Temperatures For Sand Cast Cu-5ni-5sn Alloy,” Journal of Engineering Science and Technology, vol. 11 no. 11, pp. 1609 – 1619, 2016 © School of Engineering, Taylor’s University.
  10. B. Alili, D. Bradai, P. Zieba, “On The Discontinuous Precipitation Reaction And Solute Redistribution In A Cu-15%Ni-8%Sn Alloy,” Material Characterization, vol. 59, pp. 1526-1530, 2008.
  11. E. J. Livak, Ph.D. Thesis, University of California, Berkeley, LBL-II07, 1972.
  12. F. Findik, F. Rehman, “A Spinodal Cu-Ni-Cr alloy,” Transactions on Engineering Sciences, vol. 2, pp. 219-228, 1993. WIT Press.
  13. Fehim Findik, “Modulated Alloys. Periodicals of Engineering and Natural Sciences,” vol. 1, no.1, pp.  47-55, 2013.
  14. P. P. Rao, B. K. Agrawal and A. M. Rao, “Comparative Study Of Spinodal Decomposition In Symmetrical And Asymmetric Cu-Ni-Cr alloys,” J. Mater Sci. vol. 26, pp. 1485-1496, 1991.
  15. M. Bouchard, R. J. Livak, G. Thomas, “Interphase Interfaces In Spinodal Alloys,” Surface Science, vol. 31, pp. 275-295, 1972.
  16. F. Findik, “Precipitation Reactions In Some Cu-Ni-Cr Alloys, PhD Thesis, Imperial College, University of London, UK, 1992.
  17. W. R. Cribb and J. O. Ratka, “Copper Spinodal Alloys,” Advanced Materials & Processes, vol. 160, no. 11, pp. 1-4, 2002.
  18. D. Bower, G. W. Lorimer, I. Saunderson and P. Wilkes, “Precipitation in Some Cu-Ni-Cr Alloys,” Metals Tech. vol. 7, no. 3, pp. 120-126, 1980.
  19. H. Ramanarayan and T. A. Abinandanan, “Spinodal decomposition in fine grained materials,” Bull. Mater. Sci. vol. 26, no. 1, pp. 189–192. © Indian Academy of Sciences,2003.


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