Abstract
Cyclic dislocation transformations are detected in the deformation macrolocalization zone during tension of a Zr-1% Nb alloy, and this cyclicity is accompanied by periodic relaxation of internal stresses as a result of the decomposition of sub-boundaries and dislocation redistribution. The oscillatory instability of deformation localization in the hardening-softening mode at the parabolic stage of plastic flow in zirconium alloys is found to be related to the cyclicity of dislocation transformations in the macrolocalization zone during its transformation into a neck.
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T. M. Poletika, G. N. Narimanova, and S. V. Kolosov, Zh. Tekh. Fiz. 76(3), 44 (2006) [Tech. Phys. 51, 336 (2006)].
T. M. Poletika and A. P. Pshenichnikov, Zh. Tekh. Fiz. 79(3), 54 (2009) [Tech. Phys. 54, 380 (2009)].
N. A. Koneva, E. V. Kozlov, and L. I. Trishkina, Mater. Sci. Eng., A 319–321, 156 (2001).
T. T. Ungar, O. Castelnau, G. Ribarik, et al., Acta Mater. 55, 1117 (2007).
I. S. Dragomir and T. T. Ungar, J. Appl. Cryst. 35, 556 (2002).
T. M. Poletika, S. L. Girsova, N. A. Popova, N. A. Koneva, and E. V. Kozlov, Deform. Razrush. Mater., No. 10, 12 (2006).
F. Xu, R. A. Holt, and M. R. Daymond, Acta Mater. 56, 3672 (2008).
D. Gloaguen, T. Berchi, E. Girard, and R. Guillen, Acta Mater. 55, 4369 (2007).
O. A. Kaibyshev, and R. Z. Valiev, Grain Boundaries and Properties of Metals (Metallurgia, Moscow, 1987) [in Russian].
L. Jiang, M. T. Pe’rez-Prado, P. A. Gruber, et al., Acta Mater. 56, 1228 (2008).
T. M. Poletika, S. L. Girsova, and A. P. Pshenichnikov, Pis’ma Zh. Tekh. Fiz. 36(7), 31 (2010) [Tech. Phys. Lett. 36, 308 (2010)].
G. A. Malygin, Usp. Fiz. Nauk 169, 979 (1999) [Phys. Usp. 42, 887 (1999)].
G. A. Malygin, Fiz. Tverd. Tela (St. Petersburg) 48, 651 (2006) [Phys. Solid State 48, 693 (2006)].
A. M. Glezer and L. S. Metlov, Fiz. Tverd. Tela (St. Petersburg) 52, 1090 (2010) [Phys. Solid State 52, 1162 (2010)].
V. M. Bykov, V. A. Likhachev, Yu. A. Nikonov, et al., Fiz. Met. Metalloved. 45, 163 (1978).
D. A. Hughes and N. Hansen, Acta Mater. 48, 2985 (2000).
M. Jin, A. M. Minor, E. A. Stach, J. W. Morris, Jr., Acta Mater. 52, 5381 (2004).
G. J. Fan, L. F. Fu, H. Choo, et al., Acta Mater. 54, 4781 (2006).
M. Yu. Gutkin, K. N. Mikaelyan, and I. A. Ovid’ko, Fiz. Tverd. Tela (St. Petersburg) 50, 1216 (2008) [Phys. Solid State 50, 1265 (2008)].
S. V. Bobylev, M. Yu. Gutkin, and I. A. Ovid’ko, Fiz. Tverd. Tela (St. Petersburg) 46, 1986 (2004) [Phys. Solid State 46, 2053 (2004)].
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Original Russian Text © T.M. Poletika, S.L. Girsova, A.P. Pshenichnikov, 2011, published in Zhurnal Tekhnicheskoĭ Fiziki, 2011, Vol. 81, No. 5, pp. 59–64.
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Poletika, T.M., Girsova, S.L. & Pshenichnikov, A.P. Cyclicity of the dislocation restructuring in necking in an hcp Zr-Nb alloy. Tech. Phys. 56, 646–651 (2011). https://doi.org/10.1134/S1063784211050276
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DOI: https://doi.org/10.1134/S1063784211050276