naa a22 4500 510815316 CHVBK 20180411083504.0 cr unu---uuuuu 180411e20130401xx s 000 0 eng 10.1134/S0031918X13020087 doi (NATIONALLICENCE)springer-10.1134/S0031918X13020087 Mechanical spectroscopy of Al-Mg alloys [Elektronische Daten] [I. Golovin, A. Bychkov, S. Medvedeva, X. Hu, M. Zheng] The internal friction of deformed, annealed, and quenched Al-Mg alloys with Mg contents of 0-12 wt % has been studied as a function of temperature. The measurements have been performed in the range of 25-580°C at 0.3-30 Hz using a DMA Q800 TA Instruments dynamic mechanical analyzer at the maximum amplitude of deformation ɛ0 = 5 × 10−5. In annealed alloys with Mg contents up to 5 %, a relaxation IF peak with activation parameters (activation energy H ≈ 1.7-2.1 eV) has been detected. In alloys with 8-12% Mg, this relaxation peak is absent and, at a lower temperature, another IF peak appears (with an activation energy H of about 1 eV), which is interpreted as the Zener peak in terms of the combination of activation parameters. The article discusses the nature of these peaks and the influence of alloying on the relaxation mechanisms. In cold-worked alloys, an IF pseudo-peak takes place, which is related to the recrystallization of samples, and its temperature position in the alloys that contain more than 5% Mg depends not only on the degree of deformation, but also on the dissolution temperature of the β phase. Pleiades Publishing, Ltd., 2013 Al-Mg alloys nationallicence internal friction nationallicence relaxation and recrystallization nationallicence Golovin I. National University of Science and Technology (MISiS), Leninskii prospekt 4, 119049, Moscow, Russia aut Bychkov A. National University of Science and Technology (MISiS), Leninskii prospekt 4, 119049, Moscow, Russia aut Medvedeva S. National University of Science and Technology (MISiS), Leninskii prospekt 4, 119049, Moscow, Russia aut Hu X. Department of Materials Science, Harbin Institute of Technology, 92 West Da-Zhi St., 150001, Harbin, China aut Zheng M. Department of Materials Science, Harbin Institute of Technology, 92 West Da-Zhi St., 150001, Harbin, China aut The Physics of Metals and Metallography SP MAIK Nauka/Interperiodica 114/4(2013-04-01), 327-338 0031-918X 114:4<327 2013 114 11508 https://doi.org/10.1134/S0031918X13020087 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0031918X13020087 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Golovin I. National University of Science and Technology (MISiS), Leninskii prospekt 4, 119049, Moscow, Russia aut NATIONALLICENCE 700 1- Bychkov A. National University of Science and Technology (MISiS), Leninskii prospekt 4, 119049, Moscow, Russia aut NATIONALLICENCE 700 1- Medvedeva S. National University of Science and Technology (MISiS), Leninskii prospekt 4, 119049, Moscow, Russia aut NATIONALLICENCE 700 1- Hu X. Department of Materials Science, Harbin Institute of Technology, 92 West Da-Zhi St., 150001, Harbin, China aut NATIONALLICENCE 700 1- Zheng M. Department of Materials Science, Harbin Institute of Technology, 92 West Da-Zhi St., 150001, Harbin, China aut NATIONALLICENCE 773 0- The Physics of Metals and Metallography SP MAIK Nauka/Interperiodica 114/4(2013-04-01), 327-338 0031-918X 114:4<327 2013 114 11508 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer