Abstract
High-current-density electropulsing was applied to a coarse-grained Cu–Zn alloy with two phases of α-phase and β′-phase. It was found that with an electropulsing treatment, ultrafine-grained (UFG) microstructure could be formed in the α-phase, but could not be formed in the β-phase. The results indicated that the formation of UFG microstructure was dependent on solid-state phase transformation. The main reason for the formation of UFG microstructure by electropulsing treatment resulted from the effect of a decrease in thermodynamic barrier and enhancement of nucleation rate in a current-carrying system, but not from the high heating and cooling rate during electropulsing treatment. The bulk UFG samples prepared by electropulsing treatment were free of porosity and contamination and had no large microstrain. It was reasonable to anticipate that a new method might be developed to produce ideal bulk UFG samples directly from the conventional coarse-grained materials by application of electropulsing.
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References
P.S. Ho and T. Kwok, Rep. Prog. Phys. 52, 301 (1989).
H. Conrad and A.F. Sprecher, in Dislocations in Solids, edited by F.R.N. Nabarro (Elsevier Science Publishers, Amsterdam, The Netherlands, 1989), p. 497.
A.K. Misra, Metall. Trans. A 16, 1354 (1985).
H. Mizubayashi and S. Okuda, Phys. Rev. B 40, 8057 (1989).
Z.H. Lai, H. Conrad, G.Q. Teng, and Y S. Chao, Mater. Sci. Eng. A 287, 238 (2000).
Y.Z. Zhou, Y. Zeng, G.H. He, and B. L. Zhou, J. Mater. Res. 16, 17 (2001).
Y.Z. Zhou, R.S. Qin, S.H. Xiao, G.H. He, and B.L. Zhou, J. Mater. Res. 15, 1056 (2000).
H. Conrad, A.F. Sprecher, W.D. Cao, and X.P. Lu, in Homogenization and Annealing of Al and Cu Alloys, edited by H. Merchant, J. Crane, and E. Chia (TMS, Warrendale, PA, 1990), p. 227.
Z.S. Xu, Z.H. Lai, and Y.X. Chen, Scripta Metall. 22, 182 (1988).
H. Gleiter, Prog. Mater. Sci. 33, 223 (1989).
K. Lu, Mater. Sci. Eng. R 16, 161 (1996).
C.C. Koch, Nanostructured Mater. 2, 109 (1993).
H. Bakker, G.F. Zhou, and H. Yang, Prog. Mater. Sci. 39, 159 (1995).
U. Erb, A.M. El-Sherik, G. Palumbo, and K.T. Aust, Nanostructured Mater. 2, 383 (1993).
R.Z. Valiev, A.V. Korznikor, and R.R. Mulyukov, Mater. Sci. Eng. A 168, 141 (1993).
L. Lu, M.L. Sui, and K. Lu, Science 287, 1463 (2000).
Y.Z. Zhou, J.D. Guo, W. Zhang, and G.H. He, J. Mater. Res. 17, 3012 (2002).
Y.Z. Zhou, W. Zhang, B.Q. Wang, G.H. He, and J.D. Guo, J. Mater. Res. 17, 2105 (2002).
Y.Z. Zhou, W. Zhang, M.L. Sui, D.X. Li, G.H. He, and J.D. Guo, J. Mater. Res. 17, 921 (2002).
Binary Alloy Phase Diagrams, 2nd ed., edited by T.B. Massalski, H. Okamoto, P.R. Subramanian, and L. Kacprzak (ASM International, Metals Park, OH, 1990), p. 1508.
Y. Dolinsky and T. Elperin, J. Appl. Phys. 73, 5283 (1993).
Y. Dolinsky and T. Elperin, Phys. Rev. B 47, 14778 (1993).
Y. Dolinsky and T. Elperin, Phys. Rev. B 50, 52 (1994).
R.S. Qin and B.L. Zhou, Int. J. Non-Equilib. Proc. 11, 77 (1998).
R.S. Qin and B.L. Zhou, Chin. J. Mater. Res. 11, 69 (1997).
Y. Dolinsky and T. Elperin, Mater. Sci. Eng. A 287, 219 (2000).
P.S. Xiang, Worked Handbook of Heavy Nonferrous Alloys (Metallurgy Industry Publisher, Beijing, China, 1979), p. 59.
D.A. Porter and K.E. Easterling, Phase Transformation in Metals and Alloys (Van Nostrand Reinhold, Berkshire, U.K., 1984) pp. 186–260.
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Zhou, Y., Zhang, W., Wang, B. et al. Ultrafine-grained microstructure in a Cu–Zn alloy produced by electropulsing treatment. Journal of Materials Research 18, 1991–1997 (2003). https://doi.org/10.1557/JMR.2003.0276
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DOI: https://doi.org/10.1557/JMR.2003.0276