caa a22 4500 463227646 CHVBK 20180405153232.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10853-007-2059-y doi (NATIONALLICENCE)springer-10.1007/s10853-007-2059-y Microstructure and properties of Mg-5.6%Sn-4.4%Zn-2.1%Al alloy [Elektronische Daten] [S. Harosh, L. Miller, G. Levi, M. Bamberger] In a previous study, Mg-Sn-Zn-based alloys showed insufficient structural stability at elevated temperatures. In order to improve the castability and corrosion resistance 2.1%wt Al was added to the Mg-5.6%Sn-4.4%Zn base alloy. At the as-cast condition, SEM micrographs indicate a very fine microstructure (Dendritic Arm Spacing—DAS—smaller than 17μm). The study focuses on precipitation hardening, phase formation and structural stability, during the aging of solution treated samples at elevated temperatures. After solution treatment and aging at 225°C, Vickers hardness measurements show that this alloy maintains a constant increase of 30% in hardness for periods of up to 32days. EDS (SEM & STEM), XRD, and Auger characterization methods were applied to identify the phases presented in the alloy. There is no evidence for the presence of the deleterious γ-Al12Mg17 phase. SAXS measurement and STEM micrographs reveal very fine precipitations (less than 100nm) after 32days of aging, along with homogenously distributed larger precipitations (up to 500nm). Springer Science+Business Media, LLC, 2007 Harosh S. Department of Material Engineering, Technion IIT, 32000, Haifa, Israel aut Miller L. Department of Material Engineering, Technion IIT, 32000, Haifa, Israel aut Levi G. Department of Material Engineering, Technion IIT, 32000, Haifa, Israel aut Bamberger M. Department of Material Engineering, Technion IIT, 32000, Haifa, Israel aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/24(2007-12-01), 9983-9989 0022-2461 42:24<9983 2007 42 10853 https://doi.org/10.1007/s10853-007-2059-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-2059-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Harosh S. Department of Material Engineering, Technion IIT, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Miller L. Department of Material Engineering, Technion IIT, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Levi G. Department of Material Engineering, Technion IIT, 32000, Haifa, Israel aut NATIONALLICENCE 700 1- Bamberger M. Department of Material Engineering, Technion IIT, 32000, Haifa, Israel aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/24(2007-12-01), 9983-9989 0022-2461 42:24<9983 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer