Deformation-processed copper-chromium alloys: Optimizing strength and conductivity

  • 103 Accesses

  • 17 Citations


A developmental research program has been carried out to produce deformation-processed copper-chromium wires with optimum combinations of ultimate strength and electrical conductivity. Properties are improved by use of deformation to assist in the precipitation of chromium from solid solution. Various combinations of deformation, solution heat treatment plus quenching, and aging have been studied and an optimum processing scheme determined. Using this processing scheme, it is shown that deformation-processed Cu-7 vol % Cr wires have strengths on the order of 50 % higher than commercial copper alloys available in the same conductivity range of 75 to 90% IACS.

This is a preview of subscription content, log in to check access.

Access options

Buy single article

Instant unlimited access to the full article PDF.

US$ 39.95

Price includes VAT for USA

Subscribe to journal

Immediate online access to all issues from 2019. Subscription will auto renew annually.

US$ 408

This is the net price. Taxes to be calculated in checkout.


  1. 1.

    J.D. Verhoeven, W.A. Spitzig, L.L. Jones, H.L. Downing, C.L.Trybus, E.D. Gibson, et al., Development of Deformation Processed Copper-Refractory Metal Composite Alloys,J. Mater. Eng., Vol 12, 1990, p 127–139

  2. 2.

    W.A. Spitzig, C.L. Trybus, and J.D. Verhoeven, Chap. 7 inMetal Matrix Composites: Processing and Interfaces, R.K. Everett and R.J. Arsenault, Ed., Academic Press, London, 1991

  3. 3.

    G.A. Jerman, I.E. Anderson, and J.D. Verhoeven, Strength and Electrical Conductivity of Deformation Processed Cu-15% Fe Alloys Produced by Powder Metallurgical Techniques,Metall. Trans. A, Vol 24A, 1993, p 35–42

  4. 4.

    ASM Handbook. Vol 4,Heat Treating, ASM International, 1991, p894

  5. 5.

    J.D. Verhoeven, H.L. Downing, L.S. Chumbley, and E.D. Gibson, The Resistivity and Microstructure of Heavily Drawn Cu-Nb Alloys,J. Appl. Phys., Vol 65, 1989, p 1293–1301

  6. 6.

    T.W. Ellis, S.T. Kim, and J.D. Verhoeven, Deformation-Processed Copper-Chromium Alloys: Role of Age Hardening,J. Mater. Eng. Perform., in this issue

  7. 7.

    H.J. Fisher, D.A. Hay, and W.L. Finlay, The Development and Properties of a New High-Conductivity/High-Strength Copper Alloy,J. Inst. Met., Vol 98, 1970, p 368–375

  8. 8.

    P.W. Taubenblat, W.R. Opie, and Y.T. Hsu, A New Copper Alloy with High Strength and Conductivity,Met. Eng. Q., Vol 12 (No.4), 1972, p41–45

  9. 9.

    T. Kawahara and M. Tsuji, “Copper Alloy Leads for Semiconductor Devices,” Japanese Patent 63,167,832, 24 July, 1987

  10. 10.

    Y. Oyama, M. Asai, T. Sato, S. Shiga, and S. Shinozaki, “Copper Alloy for Electronic Leads and Its Heat Treatment,” Japanese Patent6,338,561,19 Feb l988

  11. 11.

    W. Duerrschnabel, F. Puckert, and M. Bietschacher, “Copper-Chromium-Titanium-Silicon Alloys for Electrical Apparatus,” European Patent 264,463, 27 April 1988

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Kim, S.T., Berge, P.M. & Verhoeven, J.D. Deformation-processed copper-chromium alloys: Optimizing strength and conductivity. JMEP 4, 573–580 (1995).

Download citation


  • copper-chromium alloys
  • deformation processing
  • electrical conductivity