naa a22 4500 510770843 CHVBK 20180411083212.0 cr unu---uuuuu 180411e20131201xx s 000 0 eng 10.1007/s11837-013-0754-5 doi (NATIONALLICENCE)springer-10.1007/s11837-013-0754-5 Phase Composition and Superplastic Behavior of a Wrought AlCoCrCuFeNi High-Entropy Alloy [Elektronische Daten] [D. Shaysultanov, N. Stepanov, A. Kuznetsov, G. Salishchev, O. Senkov] A cast AlCoCrCuFeNi high-entropy alloy was multiaxially forged at 950°C to produce a fine homogeneous mixture of grains/particles of four different phases with the average size of ~2.1μm. The forged alloy exhibited unusual superplastic behavior accompanied by a pronounced softening stage, followed by a steady-state flow stage, during tensile deformation at temperatures of 800°C-1000°C and at strain rates of 10−4-10−1s−1. Despite the softening stage, no noticeable strain localization was observed and a total elongation of up to 1240% was obtained. A detailed analysis of the phase composition and microstructure of the alloy before and after superplastic deformation was conducted, the strain rate and temperature dependences of the flow stress were determined at different stages of the superplastic deformation, and the relationships between the microstructure and properties were identified and discussed. The Minerals, Metals & Materials Society, 2013 Shaysultanov D. Laboratory of Bulk Nanostructured Materials, Belgorod State University, 85 Pobeda St., 308015, Belgorod, Russia aut Stepanov N. Laboratory of Bulk Nanostructured Materials, Belgorod State University, 85 Pobeda St., 308015, Belgorod, Russia aut Kuznetsov A. Laboratory of Bulk Nanostructured Materials, Belgorod State University, 85 Pobeda St., 308015, Belgorod, Russia aut Salishchev G. Laboratory of Bulk Nanostructured Materials, Belgorod State University, 85 Pobeda St., 308015, Belgorod, Russia aut Senkov O. UES, Inc., 4401 Dayton-Xenia Rd., 45432, Dayton, OH, USA aut JOM Springer US; http://www.springer-ny.com 65/12(2013-12-01), 1815-1828 1047-4838 65:12<1815 2013 65 11837 https://doi.org/10.1007/s11837-013-0754-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-013-0754-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shaysultanov D. Laboratory of Bulk Nanostructured Materials, Belgorod State University, 85 Pobeda St., 308015, Belgorod, Russia aut NATIONALLICENCE 700 1- Stepanov N. Laboratory of Bulk Nanostructured Materials, Belgorod State University, 85 Pobeda St., 308015, Belgorod, Russia aut NATIONALLICENCE 700 1- Kuznetsov A. Laboratory of Bulk Nanostructured Materials, Belgorod State University, 85 Pobeda St., 308015, Belgorod, Russia aut NATIONALLICENCE 700 1- Salishchev G. Laboratory of Bulk Nanostructured Materials, Belgorod State University, 85 Pobeda St., 308015, Belgorod, Russia aut NATIONALLICENCE 700 1- Senkov O. UES, Inc., 4401 Dayton-Xenia Rd., 45432, Dayton, OH, USA aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/12(2013-12-01), 1815-1828 1047-4838 65:12<1815 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer