Skip to main content
SpringerLink
Log in

Resistance of the Contact Welding Electrodes Made of a Cu–0.7% Cr–0.9% Hf Alloy with an Ultrafine-Grained Structure

  • Published:
Russian Metallurgy (Metally) Aims and scope

Abstract

The structure, the mechanical properties, and the electrical conductivity of the Cu–0.7% Cr–0.9% Hf alloy subjected to equal-channel angular pressing (ECAP) followed by aging are studied. The treatment that consists of ECAP and aging at 450°C for 2.5 h is shown to result in a high strength (σu = 605 MPa) and a high electrical conductivity (78% IACS) of the alloy. This combination of properties increases the resistance of the contact welding electrodes made of an ultrafine-grained Cu–0.7% Cr–0.9% Hf alloy as compared to its initial coarse-grained state.

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

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
Fig. 6.

Similar content being viewed by others

REFERENCES

  1. A. K. Nikolaev and V. M. Rozenberg, Alloys for Contact Welding Electrodes (Metallurgiya, Moscow, 1978).

    Google Scholar 

  2. N. Bochvar, “Cr–Cu–Zr (chromium–copper–zirconium),” in Non-Ferrous Metal Systems. Pt. 2: Selected Cooper Systems, Ed. by G. Effenberg and S. Ilyenko (Springer, Berlin, 2007), Vol. 11C2, pp. 228–242.

  3. C. Watanabe, R. Monzen, and K. Tazaki, “Mechanical properties of Cu–Cr system alloys with and without Zr and Ag,” J. Mater. Sci. 43, 813–819 (2008).

    Article  Google Scholar 

  4. D. V. Shangina, N. R. Bochvar, M. V. Gorshenkov, H. Yanar, G. Purcek, and S. V. Dobatkin, “Influence of microalloying with zirconium on the structure and properties of Cu–Cr alloy after high pressure torsion,” Mater. Sci. Eng. A 650, 63–66 (2016).

    Article  Google Scholar 

  5. R. K. Islamgaliev, K. M. Nesterov, J. Bourgon, Y. Champion, and R. Z. Valiev, “Nanostructured Cu–Cr alloy with high strength and electrical conductivity,” J. Appl. Phys. 115, article no. 194301 (2014).

    Article  Google Scholar 

  6. V. I. Zel’dovich, I. V. Khomskaya, N. Yu. Frolova, A. E. Kheifets, E. V. Shorokhov, and P. A. Nasonov, “Structure of chromium–zirconium bronze subjected to dynamic channel-angular pressing and aging,” Phys. Met. Metallogr. 114 (5) 411–418 (2013).

    Article  Google Scholar 

  7. A. Vinogradov, V. Patlan, Y. Suzuki, K. Kitagawa, and V. I. Kopylov, “Structure and properties of ultra-fine grain Cu–Cr–Zr alloy produced by equal-channel angular pressing,” Acta Mater. 50, 1639–1651 (2002).

    Article  Google Scholar 

  8. A. Vinogradov, T. Ishida, K. Kitagawa, and V. I. Kopylov, “Effect of strain path on structure and mechanical behavior of ultrafine grain Cu–Cr alloy produced by equal-channel angular pressing,” Acta Mater. 53, 2181–2192 (2005).

    Article  Google Scholar 

  9. Q. J. Wang, C. Z. Xu, M. S. Zheng, J. W. Zhu, and Z. Z. Du, “Fatigue crack initiation life prediction of ultra-fine grain chromium–bronze prepared by equal-channel angular pressing,” Mater. Sci. Eng. A 496, 434–438 (2008).

    Article  Google Scholar 

  10. K. V. Valdés León, M. A. Munoz-Morris, and D. G. Morris, “Optimization of strength and ductility of Cu–Cr–Zr by combining severe plastic deformation and precipitation,” Mater. Sci. Eng. A 536, 181–189 (2012).

    Article  Google Scholar 

  11. G. Purcek, H. Yanar, O. Saray, I. Karaman, and H. J. Maier, “Effect of precipitation on mechanical and wear properties of ultrafine-grained Cu–Cr–Zr alloy,” Wear 311, 149–158 (2014).

    Article  Google Scholar 

  12. J. Li, J. Wongsa-Ngam, J. Xu, D. Shan, B. Guo, and T. G. Langdon, “Wear resistance of an ultrafine-grained Cu–Zr alloy processed by equal-channel angular pressing,” Wear 326–327, 10–19 (2015).

  13. A. P. Zhilyaev, I. Shakhova, A. Morozova, A. Belyakov, and R. Kaibyshev, “Grain refinement kinetics and strengthening mechanisms in Cu–0.3Cr–0.5Zr alloy subjected to intense plastic deformation,” Mater. Sci. Eng. A 654, 131–142 (2016).

    Article  Google Scholar 

  14. G. Purcek, H. Yanar, M. Demirtas, Y. Alemdag, D. V. Shangina, and S. V. Dobatkin, “Optimization of strength, ductility and electrical conductivity of Cu–Cr–Zr alloy by combining multi-route ECAP and aging,” Mater. Sci. Eng. A 649, 114–122 (2016).

    Article  Google Scholar 

  15. R. K. Islamgaliev, K. M. Nesterov, and R. Z. Valiev, “Structure, strength, and electrical conductivity of a Cu–Cr copper-based alloy subjected to severe plastic deformation,” Phys. Met. Metallogr. 116 (2) 209–218 (2015).

    Article  Google Scholar 

  16. M. E. Drits, N. R. Bochvar, L. S. Guzei, E. V. Lysova, E. M. Padezhnova, L. L. Rokhlin, and N. I. Turkina, Copper-Based Binary and Multicomponent Systems (Nauka, Moscow, 1979).

    Google Scholar 

Download references

ACKNOWLEDGMENTS

We thank M.N. Putintseva for her help in performing the experiments and helpful discussions.

This work was performed according to state task no. 007-00129-18-00.

Author information

Authors and Affiliations

  1. Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow, Russia

    D. V. Shan’gina, N. R. Bochvar & S. V. Dobatkin

  2. Laboratory of Hybrid Nanostructured Materials, National University of Science and Technology MISiS, Moscow, Russia

    D. V. Shan’gina & S. V. Dobatkin

  3. Southwest State University, Kursk, Russia

    N. I. Ivanov

Authors
  1. D. V. Shan’gina
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. N. I. Ivanov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. N. R. Bochvar
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. S. V. Dobatkin
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to D. V. Shan’gina.

Additional information

Translated by K. Shakhlevich

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Shan’gina, D.V., Ivanov, N.I., Bochvar, N.R. et al. Resistance of the Contact Welding Electrodes Made of a Cu–0.7% Cr–0.9% Hf Alloy with an Ultrafine-Grained Structure. Russ. Metall. 2018, 815–819 (2018). https://doi.org/10.1134/S0036029518090112

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S0036029518090112

Keywords:

Search

Navigation