Abstract
Measurements have been made of the acoustic emission that occurs during the plastic deformation of metallic glass subjected to various heat treatments. It is shown that for the same temperature and deformation rate it is possible to have either homogeneous flow with no acoustic emission or localized flow accompanied by intense discrete acoustic emission, depending on the preliminary annealing conditions. From an analysis of the experimental results, it is deduced that the nature of the plastic flow of metallic glasses is determined by the structural relaxation rate at the experimental temperature and the conditions of intense structural relaxation, that plastic flow is homogeneous viscoelastic, and, under the conditions of kinetically inhibited structural relaxation, that it is localized and occurs by a dislocation-like mechanism.
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References
V. P. Alekhin and V.A. Khonik, Structure and Physical Regularities of the Deformation of Amorphous Alloys [in Russian] (Moscow, 1992).
A. S. Argon, Acta Metall. 27, No. 1, 47 (1979).
F. Speipen, in Rapidly Quenched Metals, [in Russian] edited by B. Kantor (Moscow, 1983), pp. 366–379.
G. A. Dzyuba, I. V. Zolotukhin, A. T. Kosilov, and V. A. Khonik, Fiz. Tverd. Tela (Leningrad) 33, 3393 (1991) [Sov. Phys. Solid State 33, 1913 (1991)].
A. T. Kosilov, V. A. Kuz’mishchev, and V. A. Khonik, Fiz. Tverd. Tela (Leningrad) 34, 3682 (1992) [Sov. Phys. Solid State 34, 1971 (1992)].
V. A. Khonik, A. T. Kosilov, V. A. Kuzmitschev, and G. A. Dzuba, Acta Metall. Mater. 40, 1387 (1992).
O. P. Bobrov, I. A. Safonov, and V. A. Khonik, Fiz. Tverd. Tela 36, 1703 (1994) [Phys. Solid State 36, 931 (1994)].
O. P. Bobrov, V. A. Khonik, and I. A. Safonov, Scr. Metall. Mater. 32, 1369 (1995).
V. A. Khonik, J. Alloys & Comp. 211/212, 114 (1994).
O. P. Bobrov and V. A. Khonik, J. Non.-Cryst. Solids 192/193, 603 (1995).
V. A. Khonik and L. V. Spivak, Acta Mater. 44, 367 (1996).
A. M. Leksovskii, A. Yu. Vinogradov, and V. V. Smirnov, Pis’ma Zh. Tekh. Fiz. 12, 641 (1986) [Sov. Tech. Phys. Lett. 12, 265 (1986)].
A. P. Braginskii, A. Yu. Vinogradov, A. M. Leksovskii, and B. M. Medvedev, Pis’ma Zh. Tekh. Fiz. 12, 1111 (1986) [Sov. Tech. Phys. Lett. 12, 459 (1986)].
A. Yu. Vinogradov, A. M. Leksovskii, V. A. Bernshtein, and V. M. Egorov, Fiz. Tverd. Tela (Leningrad) 30, 550 (1988) [Sov. Phys. Solid State 30, 314 (1988)].
A. Yu. Vinogradov, A. M. Leksovskii, and V. V. Yakovenko, Metallofizika 11, No. 2, 66 (1989).
A. T. Kosilov and V. A. Khonik, Izv. Ross. Akad. Nauk Ser. Fiz. 57, No. 11, 192 (1993).
V. A. Khonik, A. T. Kosilov, and V. A. Mokhailov, J. Non.-Cryst. Solids 192/193, 420 (1995).
V. I. Beliavskii, O. P. Bobrov, A. T. Kosilov, and V. A. Khonik, Fiz. Tverd. Tela (St. Petersburg) 38, 30 (1996) [Phys. Solid State 38, 16 (1996)].
O. P. Bobrov, A. T. Kosilov, V. A. Mikhailov, and V. A. Khonik, Izv. Ross. Akad. Nauk Ser. Fiz. 60, No. 9, 124 (1996).
O. P. Bobrov, A. T. Kosilov, and V. A. Khonik, Fiz. Tverd. Tela (St. Petersburg) 38, 1086 (1996) [Phys. Solid State 38, 601 (1996)].
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Fiz. Tverd. Tela (St. Petersburg) 39, 885–888 (May 1997)
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Vinogradov, A.Y., Mikhailov, V.A. & Khonik, V.A. Acoustic emission during heterogeneous and homogeneous plastic flow of a metallic glass. Phys. Solid State 39, 787–790 (1997). https://doi.org/10.1134/1.1129970
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DOI: https://doi.org/10.1134/1.1129970