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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Scandium Extraction and Use in Aluminum Alloys
Presentation Title Mechanical Properties and Applications of Aluminum Scandium Alloys at Elevated Temperatures
Author(s) Gregory J. Hildeman, Ken Koldenhoven
On-Site Speaker (Planned) Gregory J. Hildeman
Abstract Scope The mechanical properties of a unique, dispersion-strengthened aluminum alloy, which contains scandium (Sc) are described. The alloy, named Pandalloy® Gen2, is produced by vacuum hot pressing of atomized powders that were rapidly solidified at cooling rates of 103 to 105 °C per second. Rapid solidification creates fine, intermetallic particles that are dispersed throughout the aluminum matrix. The particles are composed of combinations of Al, Gd, Ni, Sc, and Zr, which solidify as intermetallic phases that are resistant to coarsening and result in superior room and elevated temperature strength up to 700 °F (371°C) and higher, compared to conventional heat treated aluminum alloys such as AA2618-T61. Initial application of Pandalloy® Gen2 is focused on race car pistons where advantages of high tensile and fatigue strengths, excellent thermal stability and resistance to cracking, can be used to achieve higher combustion cylinder temperatures, greater horsepower and increased durability of pistons.
Proceedings Inclusion? Planned: Light Metals

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

An Examination of the Effect of Solidification Processing upon the Strengthening of AlMgSc Alloys
Commercial Scandium Oxide Production by Sumitomo Metal Mining Co., Ltd.
Design and Processing Conditions of Hypoeutectic Al-Cu-Sc Alloys for Maximum Benefit of Scandium
Direct Method for Producing Scandium Metal and Scandium-aluminium Intermetallic Compounds from the Oxides
Effect of Treatment Parameters on Structure, Mechanical and Corrosion Properties of Al-Mg-Sc Alloy Forgings with Reduced Concentration of Scandium
Electrochemical Formation of Alloys of Scandium in Molten Salts
Extraction of Scandium from Lateritic Nickel-cobalt Ore Leach Solution by Ion Exchange: A Special Study and Literature Review on Previous Works
Influence of the Al3(Sc,Zr) Dispersoids and the Stretching on the Natural Ageing Behavior of a Binary Al-4wt%Cu Alloys
Mechanical Properties and Applications of Aluminum Scandium Alloys at Elevated Temperatures
Novel Heat Treatments for Scandium Containing Al-Si Alloys (Including 6xxx Series Alloys)
Sc Applications in Aluminum Alloys: Overview of Russian Research in the 20th Century
Scandium-enriched Nano-precipitates in Aluminum Provide Enhanced Coarsening and Creep Resistance
Scandium Recovery from the Nyngan Laterite Project in NSW
The Effect of Scandium and Zirconium on the Microstructure, Mechanical Properties and Formability of a Model Al-Cu Alloy
The Effect of Scandium on the Electrical Conductivity and Mechanical Properties of Al-Sc Alloys

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