naa a22 4500 510771890 CHVBK 20180411083217.0 cr unu---uuuuu 180411e20130501xx s 000 0 eng 10.1007/s11837-013-0572-9 doi (NATIONALLICENCE)springer-10.1007/s11837-013-0572-9 Influences of Nickel and Vanadium Impurities on Microstructure of Aluminum Alloys [Elektronische Daten] [Suming Zhu, Ji-Yong Yao, Lisa Sweet, Mark Easton, John Taylor, Paul Robinson, Nick Parson] In recent years, the deterioration in the available coke quality for anode production has led to increased levels of metal impurities such as nickel and vanadium in primary aluminum. There is growing concern from the industry with regard to the impact of increased Ni and V levels on the downstream properties of Al alloy products. This article presents a detailed investigation of the influences of Ni and V impurities on microstructure of three common Al alloys, i.e., AA6063, AA3102, and A356, in both as-cast and heat-treated conditions. The characterization techniques employed include scanning electron microscopy, electron backscattered diffraction, energy-dispersive x-ray spectroscopy, wavelength-dispersive spectroscopy, and transmission electron microscopy. It is shown that the phase constituents of AA6063 are not altered by Ni additions up to 0.05% or V additions up to 0.04%. Whereas there is no change in phase constituents with increasing Ni up to 0.015% for AA3102, the addition of 0.05% Ni seems to have significant influence on the microstructure. For A356, Ni additions up to 0.02% do not seem to have significant influence on the microstructure, but a new phase with significantly high Ni content is formed when the Ni impurity level is increased to 0.05%. The deep insight obtained in this work should be helpful to understandthe influences of Ni and V impurities on properties of Al alloys. TMS, 2013 Zhu Suming CAST, Department of Materials Engineering, Monash University, 3800, Clayton, VIC, Australia aut Yao Ji-Yong CAST, School of Engineering, The University of Queensland, 4075, St Lucia, QLD, Australia aut Sweet Lisa CAST, Department of Materials Engineering, Monash University, 3800, Clayton, VIC, Australia aut Easton Mark CAST, Department of Materials Engineering, Monash University, 3800, Clayton, VIC, Australia aut Taylor John CAST, School of Engineering, The University of Queensland, 4075, St Lucia, QLD, Australia aut Robinson Paul Pacific Aluminium, 4001, Brisbane, QLD, Australia aut Parson Nick Rio Tinto Alcan, Arvida Research and Development Centre, Jonquiere, QC, Canada aut JOM Springer US; http://www.springer-ny.com 65/5(2013-05-01), 584-592 1047-4838 65:5<584 2013 65 11837 https://doi.org/10.1007/s11837-013-0572-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11837-013-0572-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhu Suming CAST, Department of Materials Engineering, Monash University, 3800, Clayton, VIC, Australia aut NATIONALLICENCE 700 1- Yao Ji-Yong CAST, School of Engineering, The University of Queensland, 4075, St Lucia, QLD, Australia aut NATIONALLICENCE 700 1- Sweet Lisa CAST, Department of Materials Engineering, Monash University, 3800, Clayton, VIC, Australia aut NATIONALLICENCE 700 1- Easton Mark CAST, Department of Materials Engineering, Monash University, 3800, Clayton, VIC, Australia aut NATIONALLICENCE 700 1- Taylor John CAST, School of Engineering, The University of Queensland, 4075, St Lucia, QLD, Australia aut NATIONALLICENCE 700 1- Robinson Paul Pacific Aluminium, 4001, Brisbane, QLD, Australia aut NATIONALLICENCE 700 1- Parson Nick Rio Tinto Alcan, Arvida Research and Development Centre, Jonquiere, QC, Canada aut NATIONALLICENCE 773 0- JOM Springer US; http://www.springer-ny.com 65/5(2013-05-01), 584-592 1047-4838 65:5<584 2013 65 11837 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer