naa a22 4500 510771866 CHVBK 20180411083217.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11837-013-0581-8 doi (NATIONALLICENCE)springer-10.1007/s11837-013-0581-8 Effect of Extrusion Profile on Surface Microstructure and Appearance of Aluminum Extrusions with Different Fe Contents [Elektronische Daten] [Hanliang Zhu, Tao Wei, Malcolm Couper, Arne Dahle] Aluminum alloy extrusions with variations in profiles and Fe-rich particles were produced using different extrusion dies and iron contents. A microstructural examination of the extrusion surface shows that the extrusion profile and iron content have a great effect on the size and number of Fe-rich particles, grain size, texture, and fraction of high-angle grain boundaries due to varying localized plastic deformation and temperature in the extrudate. After etching and anodizing, surface imperfections such as grain boundary grooves that influence the final surface appearance are formed on the extrusion surfaces. The severity of grain boundary grooves is found to be directly linked to the number of Fe-rich particles. Hence, the extrusion profile has a dramatic influence on surface imperfections and the appearance of the final anodized extrusions through its effect on the surface microstructure. TMS, 2013 Zhu Hanliang Institute of Materials Engineering, Australian Nuclear Science & Technology Organisation, Kirrawee DC, 2232, Sydney, NSW, Australia aut Wei Tao Institute of Materials Engineering, Australian Nuclear Science & Technology Organisation, Kirrawee DC, 2232, Sydney, NSW, Australia aut Couper Malcolm ARC CoE for Design in Light Metals, Monash University, 3800, Clayton, VIC, Australia aut Dahle Arne ARC CoE for Design in Light Metals, Materials Engineering, University of Queensland, 4072, Brisbane, QLD, Australia aut JOM Springer US; http://www.springer-ny.com 65/5(2013-05-01), 618-624 1047-4838 65:5<618 2013 65 11837 https://doi.org/10.1007/s11837-013-0581-8 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-013-0581-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhu Hanliang Institute of Materials Engineering, Australian Nuclear Science & Technology Organisation, Kirrawee DC, 2232, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Wei Tao Institute of Materials Engineering, Australian Nuclear Science & Technology Organisation, Kirrawee DC, 2232, Sydney, NSW, Australia aut NATIONALLICENCE 700 1- Couper Malcolm ARC CoE for Design in Light Metals, Monash University, 3800, Clayton, VIC, Australia aut NATIONALLICENCE 700 1- Dahle Arne ARC CoE for Design in Light Metals, Materials Engineering, University of Queensland, 4072, Brisbane, QLD, Australia aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/5(2013-05-01), 618-624 1047-4838 65:5<618 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer