naa a22 4500 510772706 CHVBK 20180411092757.0 cr unu---uuuuu 180411e20131101xx s 000 0 eng 10.1007/s11837-013-0641-0 doi (NATIONALLICENCE)springer-10.1007/s11837-013-0641-0 Mechanical Behavior and Microstructural Development of 6063-T1 Aluminum Alloy Processed by Equal-Channel Angular Pressing (ECAP): Die Channel Angle Influence [Elektronische Daten] [Nicolae Serban, Nicolae Ghiban, Vasile-Danut Cojocaru] A commercial 6063-T1 aluminum alloy was investigated in this study. The specimens were processed for six, seven, and eight equal-channel angular pressing (ECAP) passes using three die channel angles: 90°, 100°, and 110°, respectively (maintaining approximately the same value for the accumulated equivalent strain in each case). After ECAP, samples were cut from each specimen and were prepared for metallographic analysis and mechanical testing. The microstructures of the ECAP treated and as-received material were investigated using both optical microscopy and scanning electron microscopy. It was found that the optimum ECAP die has a channel angle of 90°; the microstructure was more refined and homogeneous and second-phase particles were smaller as the die channel angle value decreased. All samples (ECAP processed and as-received) were also mechanically investigated in compression and microhardness tests. The maximum effect was observed when the 90° ECAP die was used, and significant total increases in ultimate compressive strength, yield strength, compression modulus, and microhardness were recorded compared to the as-received material. Also, it was shown that if the die channel angle value increases, then all the above mentioned mechanical properties decrease. TMS, 2013 Serban Nicolae Materials Science and Engineering Faculty, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042, Bucharest, Romania aut Ghiban Nicolae Materials Science and Engineering Faculty, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042, Bucharest, Romania aut Cojocaru Vasile-Danut Materials Science and Engineering Faculty, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042, Bucharest, Romania aut JOM Springer US; http://www.springer-ny.com 65/11(2013-11-01), 1411-1418 1047-4838 65:11<1411 2013 65 11837 https://doi.org/10.1007/s11837-013-0641-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-013-0641-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Serban Nicolae Materials Science and Engineering Faculty, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042, Bucharest, Romania aut NATIONALLICENCE 700 1- Ghiban Nicolae Materials Science and Engineering Faculty, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042, Bucharest, Romania aut NATIONALLICENCE 700 1- Cojocaru Vasile-Danut Materials Science and Engineering Faculty, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042, Bucharest, Romania aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/11(2013-11-01), 1411-1418 1047-4838 65:11<1411 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 494200723 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer