Abstract—
The effect of the temperature of plastic deformation performed by equal channel angular pressing on the structure and physical and mechanical properties of the age-hardenable Cu–Cr–Zr alloy has been studied. Plastic deformation results in the formation of an ultrafine-grained structure in some regions with an average grain size smaller than 1 µm, a supersaturated solid solution decomposition, and the precipitation of disperse particles. The fraction of the supersaturated solid solution which is decomposed is shown to increase with increasing deformation temperature. The density of microshear bands, the dislocation density, and the fraction of high-angle boundaries and the ultrafine-grained structure increase with increasing volume fraction of disperse particles.
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REFERENCES
M. Y. Murashkin, I. Sabirov, X. Sauvage, and R. Z. Valiev, “Nanostructured Al and Cu alloys with superior strength and electrical conductivity,” J. Mater. Sci. 51 (1), 33–49 (2016).
V. I. Zel’dovich, S. V. Dobatkin, N. Yu. Frolova, I. V. Khomskaya, A. E. Kheifets, E. V. Shorokhov, and P. A. Nasonov, “Mechanical properties and the structure of chromium–zirconium bronze after dynamic channel-angular pressing and subsequent aging,” Phys. Met. Metalogr. 117, 74–82 (2016).
N. Liang, J. Liu, S. Lin, Y. Wang, J. T. Wang, Y. Zhao, and Y. Zhu, “A multiscale architectured CuCrZr alloy with high strength, electrical conductivity and thermal stability,” J. Alloys Compd. 735, 1389–1394 (2018).
A. Vinogradov, Y. Suzuki, T. Ishida, K. Kitagawa, and V. I. Kopylov, “Effect of chemical composition on structure and properties of ultrafine grained Cu–Cr–Zr alloys produced by equal-channel angular pressing,” Mater. Trans. 45 (7), 2187–2191 (2004).
N. V. Melekhin and V. N. Chuvil’deev, “Influence of equal-channel-angular pressing on the particle precipitation in the Cu–Cr–Zr alloy,” Vestn. Nizhegorodsk. Univ. im. N.I. Lobachevskogo, No. 5, 55–61 (2011).
A. Chbihi, X. Sauvage, and D. Blavette, “Atomic scale investigation of Cr precipitation in copper,” Acta Mater. 60 (11), 4575–4585 (2012).
H. Fuxiang, M. Jusheng, N. Honglong, G. Zhiting, L. Chao, G. Shumei, Y. Xuetao, W. Tao, L. Hong, and L. Huafen, “Analysis of phases in a Cu–Cr–Zr alloy,” Scr. Mater. 48 (1), 97–102 (2003).
D. V. Shangina, V. F. Terent’ev, D. V. Prosvirnin, O. V. Antonova, N. R. Bochvar, M. V. Gorshenkov, G. I. Raab, and S. V. Dobatkin, “Mechanical properties, fatigue life, and electrical conductivity of Cu–Cr–Hf alloy after equal channel angular pressing,” Adv. Eng. Mater. 20 (1), 1700536 (2018).
A. Morozova, R. Mishnev, A. Belyakov, and R. Kaibyshev, “Microstructure and properties of fine grained Cu–Cr–Zr alloys after termo-mechanical treatments,” Rev. Adv. Mater. Sci. 54 (1), 56–92 (2018).
R. K. Islamgaliev, K. M. Nesterov, and R. Z. Valiev, “Structure, strength, and electric conductivity of a Cu–Cr copper-based alloy subjected to severe plastic deformation,” Phys. Met. Metallogr. 116, 209–218 (2015).
M. Murayama, A. Belyakov, T. Hara, Y. Sakai, K. Tsuzaki, M. Okubo, M. Eto, and T. Kimura, “Development of a high-strength high-conductivity Cu–Ni–P alloy. Part I: Characterization of precipitation products,” J. Electron. Mater. 35 (10), 1787–1792 (2006).
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).
F. J. Humphreys and M. Hatherly, Recrystallization and Related Annealing Phenomena (Elsevier, Amsterdam, 2012).
Y. Zhang, A. A. Volinsky, H. T. Tran, Z. Chai, P. Liu, B. Tian, and Y. Liu, “Aging behavior and precipitates analysis of the Cu–Cr–Zr–Ce alloy,” Mater. Sci. Eng., A 650, 248–253 (2016).
H. I. Aaronson, K. R. Kinsman, and K. C. Russell, “The volume free energy change associated with precipitate nucleation,” Scr. Metall. 4 (2), 101–106 (1970).
ACKNOWLEDGMENTS
The authors are grateful to the personnel of the Joint Research Center, “Technology and Materials,” Belgorod National Research University, for their assistance with instrumental analysis.
Funding
The financial supports received from the Ministry of Science and Higher Education of the Russian Federation, under President grant no. 075-15-2020-407 for microstructure investigation, and from the Russian Science Foundation, Russia, under grant no. 19-79-30025 for mechanical property analysis, and financial support of the Ministry of Science and Higher Education of Russian Federation in the frame work of Increase Competitiveness Program of NUST “MISIS” are gratefully acknowledged.
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Translated by T. Gapontseva
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Morozova, A.I., Belyakov, A.N. & Kaibyshev, R.O. Effect of Deformation Temperature on Formation of Ultrafine-Grained Structure in the Age-Hardenable Cu–Cr–Zr Alloy. Phys. Metals Metallogr. 122, 60–66 (2021). https://doi.org/10.1134/S0031918X21010087
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DOI: https://doi.org/10.1134/S0031918X21010087