A comparative study of spall fracture patterns for the heterophase Cu – 8.45% Al – 5.06% Ni alloy (аt.%) in ultrafine- and coarse-grained states under shock-wave loading using the “SINUS-7” electron accelerator is carried out. For electron energy of 1.4 MeV, pulse duration of 50 ns, and power density of 1.6·1010 W/cm2, the shock wave amplitude was 8 GPa and the strain rate was ~2·105 s–1. It is established that the thickness of the spalled layer increased for both grained structures, and the degree of plastic strain decreased with increasing target thickness. Based on experimental data obtained and results of theoretical calculations, it is demonstrated that the spall strength of ultrafine- and coarse-grained structures is ~3 GPa. The data on the grained structure at different distances from the spall surface and spall fraction patterns and mechanism are presented.
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R. Z. Valiev and I. A. Aleksandrov, Bulk Nanostructured Metal Materials: Production, Structure, and Properties [in Russian], Akademkniga Publishing and Bookselling Center, Moscow (2007).
Yu. R. Kolobov, R. Z. Valiev, G. P. Grabovetskii, et al., Grain Boundary Diffusion and Properties of Nanostructured Materials [in Russian], Nauka, Novosibirsk (2001).
N. I. Noskova and P. P. Mulyukov, Submicrocrystalline and Nanocrystalline Metals and Alloys [in Russian], Publishing House of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg (2003).
G. I. Kanel, S. V. Razorenov, A. V. Utkin, and V. E. Fortov, Shock Wave Phenomena in Condensed Media [in Russian], Yanus-K, Moscow (1996).
T. Antoun, L. Seaman, D. R. Currant, et al., Spall Fracture, Springer Verlag, New York (2003).
G. I. Kanel, S. V. Razorenov, A. V. Utkin, et al., J. Appl. Phys., 90, No. 1, 136–143 (2001).
K. Baumung, H. Bluhm, G. I. Kanel, et al., Int. J. Impact Eng., 25, 631–639 (2001).
A. Ya. Uchaev, S. A. Novikov, V. A. Tsukerman, et al., Dokl. Akad. Nauk SSSR, 310, No. 1, 611–614 (1990).
A. B. Markov, S. A. Kitsanov, V. P. Rotshtein, et al., Russ. Phys. J., 49, No. 7, 758–765 (2006).
E. F. Dudarev, A. B. Markov, A. N. Tabachenko, et al., Russ. Phys. J., 50, No. 12, 1205–1211 (2007).
E. F. Dudarev, A. B. Markov, G. P. Bakach, et al., Russ. Phys. J., 52, No. 3, 239–244 (2009).
E. F. Dudarev, O. A. Kashin, A. B. Markov, et al., Russ. Phys. J., 54, No. 6, 713–720 (2011).
V. A. Skripnyak and E. G. Skripnyak, Fizich. Mesomekh., 7, Special Issue, Part 1, 297–300 (2004).
E. G. Skripnyak, V. A. Skripnyak, and S. V. Chakhlov, Fizich. Mesomekh., 7, Special Issue, Part 1, 301–304 (2004).
A. S. Savinykh, S. V. Razorenov, and G. I. Kannel, in: Abstracts of Reports Presented at the XVIth Int. Conf. “Strength Physics and Plasticity of Materials” [in Russian], Samara (2006), pp. 84–85.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 12, pp. 68–74, December, 2012.
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Dudarev, E.F., Markov, A.B., Mayer, A.E. et al. Spall Fracture Patterns for the Heterophase Cu–Al–Ni Alloy in Ultrafine- and Coarse-Grained States Exposed to a Nanosecond Relativistic High-Current Electron Beam. Russ Phys J 55, 1451–1457 (2013). https://doi.org/10.1007/s11182-013-9979-6
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DOI: https://doi.org/10.1007/s11182-013-9979-6