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Dynamic recrystallization model of the Cu–Cr–Zr–Ag alloy under hot deformation

  • Yi Zhang (a1), Baohong Tian (a1), Alex A. Volinsky (a2), Xiaohong Chen (a3), Huili Sun (a1), Zhe Chai (a4), Ping Liu (a3) and Yong Liu (a1)...


Hot deformation and dynamic recrystallization (DRX) behavior of the Cu–Cr–Zr–Ag alloy were studied by hot compressive tests in the 650–950 °C temperature and 0.001–10 s−1 strain rate ranges using Gleeble-1500D thermomechanical simulator. The activation energy of deformation was determined as Q = 343.23 kJ/mol by the regression analysis. The critical conditions, including the critical strain and stress, for the occurrence of DRX were determined based on the alloy strain hardening rate. The critical strain related to the onset of DRX decreases with temperature. The ratios of the critical to peak stress and critical to peak strain were also identified as 0.91 and 0.49, respectively. The evolution of DRX microstructure strongly depends on the deformation conditions in terms of temperature and strain rate. Dislocation generation and multiplication are the main hot deformation mechanisms for the alloy. The addition of Ag can refine the grain and effectively improve the DRX of the Cu–Cr–Zr alloy. It can also inhibit the growth of the DRX grains at 950 °C deformation temperature, making the microstructure much more stable.


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1. Su, J.H., Dong, Q.M., Liu, P., Li, H.J., and Kang, B.X.: Research on aging precipitation in a Cu–Cr–Zr–Mg alloy. Mater. Sci. Eng., A 392, 422 (2005).
2. Tran, H.T., Shirangi, M.H., Pang, X., and Volinsky, A.A.: Temperature, moisture and mode-mixity effects on copper leadframe/EMC interfacial fracture toughness. Int. J. Fract. 185, 115 (2013).
3. Bi, L.M., Liu, P., Chen, X.H., Liu, X.K., Li, W., and Ma, F.C.: Analysis of phase in Cu–15%Cr–0.24%Zr alloy. Trans. Nonferrous Met. Soc. China 23, 1342 (2013).
4. Lin, G.B., Wang, Z.D., Zhang, M.K., Zhang, H., and Zhao, M.: Heat treatment method for making high strength and conductivity Cu–Cr–Zr alloy. Mater. Sci. Technol. 27, 966 (2011).
5. Pang, Y., Xia, C.D., Wang, M.P., Li, Z., Xiao, Z., Wei, H.G., Sheng, X.F., Jia, Y.L., and Chen, C.: Effects of Zr and (Ni, Si) additions on properties and microstructure of Cu–Cr alloy. J. Alloys Compd. 582, 786 (2014).
6. Liu, P., Kang, B.X., Cao, X.G., Huang, J.L., Yen, B., and Gu, H.C.: Aging precipitation and recrystallization of rapidly solidified Cu–Cr–Zr–Mg alloy. Mater. Sci. Eng., A. 265, 262 (1999).
7. Kong, Y.H., Chang, P.P., Li, Q., Xie, L.X., and Zhu, S.G.: Hot deformation characteristics and processing map of nickel-based C276 superalloy. J. Alloys Compd. 622, 738 (2015).
8. Momeni, A. and Abbasi, S.M.: On the opposition of dynamic recrystallization and solute dragging in steels. J. Alloys Compd. 622, 318 (2015).
9. Cram, D.G., Zuro, H.S., Brechet, Y.J.M., and Hutchinson, C.R.: Modelling discontinuous dynamic recrystallization using a physically based model for nucleation. Acta Mater. 57, 5218 (2009).
10. Ding, Z.Y., Jia, S.G., Zhao, P.F., Deng, M., and Song, K.X.: Hot deformation behavior of Cu–0.6Cr–0.03Zr alloy during compression at elevated temperatures. Mater. Sci. Eng., A 570, 87 (2013).
11. Ji, G.L., Li, Q., Ding, K.Y., Yang, L., and Li, L.: A physically-based constitutive model for high temperature deformation of Cu–0.36Cr–0.03Zr alloy. J. Alloys Compd. 648, 397 (2015).
12. Zhang, Y., Volinsky, A.A., Tran, H.T., Chai, Z., Liu, P., and Tian, B.H.: Effects of Ce addition on high temperature deformation behavior of Cu–Cr–Zr alloys. J. Mater. Eng. Perform. 24, 3783 (2015).
13. Galiyev, A., Kaibyshev, R., and Gottstein, G.: Correlation of plastic deformation and dynamic recrystallization in magnesium alloy ZK60. Acta Mater. 49, 1199 (2001).
14. Li, D.J., Feng, Y.R., Song, S.Y., Liu, Q., Bai, Q., Ren, F.Z., and Shangguan, F.S.: Influences of silicon on the work hardening behavior and hot deformation behavior of Fe–25 wt%Mn–(Si, Al) TWIP steel. J. Alloys Compd. 618, 768 (2015).
15. Salvatori, I., Inoue, T., and Nagai, K.: Ultrafine grain structure through dynamic recrystallization for type 304 stainless steel. ISIJ Int. 42, 744 (2002).
16. Xu, Y., Xi, L., and Sun, Y.: Deformation behaviour and dynamic recrystallization of AZ61 magnesium alloy. J. Alloys Compd. 580, 262 (2013).
17. Dehghan-Manshadi, A., Barnett, M.R., and Hodgson, P.D.: Hot deformation and recrystallization of austenitic stainless steel: Part I. Dynamic recrystallization. Metall. Mater. Trans. A 39, 1359 (2008).
18. Quan, G.Z., Shi, Y., Wang, Y.X., Kang, B.S., Ku, T.W., and Song, W.J.: Constitutive modeling for the dynamic recrystallization evolution of AZ80 magnesium alloy based on stress–strain data. Mater. Sci. Eng., A 528, 8051 (2011).
19. Zhang, Y., Chai, Z., Xu, Q.Q., Tian, B.H., Liu, Y., and Liu, P.: Hot deformation behavior and processing maps of Cu–0.8Cr–0.3Zr alloy. Trans. Mater. Heat Treat. 36, 8 (2015).
20. Etaati, A. and Dehghani, K.: A study on hot deformation behavior of Ni–42.5Ti–7.5Cu alloy. Mater. Chem. Phys. 140, 208 (2013).
21. Quan, G.Z., Mao, Y.P., Li, G.S., Lv, W.Q., Wang, Y., and Zhou, J.: A characterization for the dynamic recrystallization kinetics of as-extruded 7075 aluminum alloy based on true stress–strain curves. Comput. Mater. Sci. 55, 65 (2012).
22. Wang, M.H., Li, Y.F., Wang, W.H., Zhou, J., and Chiba, A.: Quantitative analysis of work hardening and dynamic softening behavior of low carbon alloy steel based on the flow stress. Mater. Des. 45, 384 (2013).
23. Poliak, E.I. and Jonas, J.J.: Initiation of dynamic recrystallization in constant strain rate hot deformation. ISIJ Int. 43, 684 (2003).
24. Wu, H.Y., Yang, J.C., Liao, J.H., and Zhu, F.J.: Dynamic behavior of extruded AZ61 Mg alloy during hot compression. Mater. Sci. Eng., A 68, 535 (2012).
25. Han, Y., Wu, H., Zhang, W., Zou, D.N., Liu, G.W., and Qiao, G.J.: Constitutive equation and dynamic recrystallization behavior of as-cast 254SMO super-austenitic stainless steel. Mater. Des. 69, 230 (2015).
26. Ji, G., Li, Q., and Li, L.: The kinetics of dynamic recrystallization of Cu–0.4Mg alloy. Mater. Sci. Eng., A 586, 197 (2013).
27. Abbasi, S.M. and Shokuhfar, A.: Prediction of hot deformation behaviour of 10Cr–10Ni–5Mo–2Cu steel. Mater. Lett. 61, 2523 (2007).
28. Li, D.J., Feng, Y.R., Yin, Z.F., Shangguan, F.S., Wang, K., Liu, Q., and Hu, F.: Prediction of hot deformation behaviour of Fe–25Mn–3Si–3Al TWIP steel. Mater. Sci. Eng., A 528, 8084 (2011).
29. Wen, D.X., Lin, Y.C., Chen, J., Chen, X.M., Zhang, J.L., Li, Y.J., and Liang, L.T.: Work-hardening behaviors of typical solution-treated and aged Ni-based superalloys during hot deformation. J. Alloys Compd. 618, 372 (2015).
30. Guo, Q., Yan, H.G., Chen, Z.H., and Zhang, H.: Grain refinement in as-cast AZ80 Mg alloy under large strain deformation. Mater. Charact. 58, 162 (2007).
31. Semiatin, S.L., Weave, D.S., Kram, R.C., Fagin, P.N., Glavicic, M.G., Goetz, R.L., Frey, N.D., and Antony, M.M.: Deformation and recrystallization behavior during hot working of a coarse-grain, nickel-base superalloy ingot material. Metall. Mater. Trans. A 35, 679 (2004).
32. Chen, Y.Y., Li, B.H., and Kong, F.T.: Effects of minor yttrium addition on hot deformability of lamellar Ti–45Al–5Nb alloy. Trans. Nonferrous Met. Soc. China 17, 58 (2007).



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