"3"^^ . "The optimization of ECAP conditions to achieve high strain-rate superplasticity in a Zr- and Sc-modified AA 7075 aluminum alloy"@en . . "The optimization of ECAP conditions to achieve high strain-rate superplasticity in a Zr- and Sc-modified AA 7075 aluminum alloy" . "M\u00E1lek, P\u0159emysl" . . "6" . . "RIV/00216208:11320/09:00206970!RIV10-GA0-11320___" . . . "1862-5282" . "7"^^ . . . "The optimization of ECAP conditions to achieve high strain-rate superplasticity in a Zr- and Sc-modified AA 7075 aluminum alloy"@en . "An AA 7075 aluminum alloy with Zr and Sc additions was subjected to 6-8 ECAP passes at 120, 170, and 220 \u00B0C in order to examine the effect of the pressing conditions on the microstructural characteristics and the consequences for high-temperature mechanical properties. Using the method of EBSD, a decrease in pressing temperature was found to lead to a more pronounced refinement of the microstructure and a higher fraction of high-angle grain boundaries, but at the same time compromised the ability of the Al3 (Zr, Sc) phase to stabilize the ultra-fine-grained microstructure at elevated temperatures. Optimum superplastic properties were therefore achieved after pressing at the intermediate temperature of 170 \u00B0C. The material exhibited high strain-rate superplasticity with a ductility of 650 % at an initial strain rate of 1 x 10-1 s-1." . "International Journal of Materials Research" . . "Turba, Kry\u0161tof" . "[C64DBCDB6D86]" . "RIV/00216208:11320/09:00206970" . . . "An AA 7075 aluminum alloy with Zr and Sc additions was subjected to 6-8 ECAP passes at 120, 170, and 220 \u00B0C in order to examine the effect of the pressing conditions on the microstructural characteristics and the consequences for high-temperature mechanical properties. Using the method of EBSD, a decrease in pressing temperature was found to lead to a more pronounced refinement of the microstructure and a higher fraction of high-angle grain boundaries, but at the same time compromised the ability of the Al3 (Zr, Sc) phase to stabilize the ultra-fine-grained microstructure at elevated temperatures. Optimum superplastic properties were therefore achieved after pressing at the intermediate temperature of 170 \u00B0C. The material exhibited high strain-rate superplasticity with a ductility of 650 % at an initial strain rate of 1 x 10-1 s-1."@en . "Rauch, E. F." . "The optimization of ECAP conditions to achieve high strain-rate superplasticity in a Zr- and Sc-modified AA 7075 aluminum alloy" . . "Cieslar, Miroslav" . . "Robaut, F." . . . . "100" . "DE - Spolkov\u00E1 republika N\u011Bmecko" . . . "11320" . "5"^^ . . . "optimization; conditions; achieve; strain-rate; superplasticity; Sc-modified; aluminum; alloy"@en . . . . . "P(GA106/07/0303), Z(MSM0021620834)" . "332009" . . "000267933300024" .