naa a22 4500 510814743 CHVBK 20180411083500.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1134/S0031918X13070090 doi (NATIONALLICENCE)springer-10.1134/S0031918X13070090 Structural changes during superplastic deformation of high-strength alloy 1933 of the Al-Mg-Zn-Cu-Zr system [Elektronische Daten] [V. Poida, D. Pedun, V. Bryukhovetskii, A. Poida, R. Sukhov, A. Samsonik, V. Litvinenko] The strain rate-temperature conditions of manifestation of the effect of high-temperature superplasticity by samples of an 1933 alloy have been established. Features of the structural state, phase composition, and deformation relief of samples of this alloy have been investigated. It has been established that grain-boundary sliding occurs intensely along both boundaries of ultrafine grains and boundaries of coarse polygonized grains parallel to the tension axis of the sample. In near-surface grain-boundary pores and in cracks that were formed and developed at the surface of the working part of these samples in the course of superplastic deformation, fiber structures were detected. The chemical composition of fibers has been investigated. The kinetics of the occurrence of phase transformations in the 1933 alloy in the course of heating of its samples to the temperature of tests has been studied, and probable causes for partial melting of the 1933 alloy have been analyzed. Fracture mechanisms for the samples deformed superplastically under the optimum conditions have been established. Pleiades Publishing, Ltd., 2013 superplasticity nationallicence liquid phase nationallicence fiber structures nationallicence partial melting nationallicence Poida V. Karazin Khar'kov National University, pl. Svobody 4, 61002, Khar'kov, Ukraine aut Pedun D. Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, ul. Chernyshevskaya 28, PO 8812, 61002, Khar'kov, Ukraine aut Bryukhovetskii V. Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, ul. Chernyshevskaya 28, PO 8812, 61002, Khar'kov, Ukraine aut Poida A. Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, ul. Chernyshevskaya 28, PO 8812, 61002, Khar'kov, Ukraine aut Sukhov R. Karazin Khar'kov National University, pl. Svobody 4, 61002, Khar'kov, Ukraine aut Samsonik A. Karazin Khar'kov National University, pl. Svobody 4, 61002, Khar'kov, Ukraine aut Litvinenko V. Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, ul. Chernyshevskaya 28, PO 8812, 61002, Khar'kov, Ukraine aut The Physics of Metals and Metallography Springer US; http://www.springer-ny.com 114/9(2013-09-01), 779-788 0031-918X 114:9<779 2013 114 11508 https://doi.org/10.1134/S0031918X13070090 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0031918X13070090 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Poida V. Karazin Khar'kov National University, pl. Svobody 4, 61002, Khar'kov, Ukraine aut NATIONALLICENCE 700 1- Pedun D. Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, ul. Chernyshevskaya 28, PO 8812, 61002, Khar'kov, Ukraine aut NATIONALLICENCE 700 1- Bryukhovetskii V. Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, ul. Chernyshevskaya 28, PO 8812, 61002, Khar'kov, Ukraine aut NATIONALLICENCE 700 1- Poida A. Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, ul. Chernyshevskaya 28, PO 8812, 61002, Khar'kov, Ukraine aut NATIONALLICENCE 700 1- Sukhov R. Karazin Khar'kov National University, pl. Svobody 4, 61002, Khar'kov, Ukraine aut NATIONALLICENCE 700 1- Samsonik A. Karazin Khar'kov National University, pl. Svobody 4, 61002, Khar'kov, Ukraine aut NATIONALLICENCE 700 1- Litvinenko V. Institute of Electrophysics and Radiation Technologies, National Academy of Sciences of Ukraine, ul. Chernyshevskaya 28, PO 8812, 61002, Khar'kov, Ukraine aut NATIONALLICENCE 773 0- The Physics of Metals and Metallography Springer US; http://www.springer-ny.com 114/9(2013-09-01), 779-788 0031-918X 114:9<779 2013 114 11508 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer