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Meeting 2023 TMS Annual Meeting & Exhibition
Symposium Scandium Extraction and Use in Aluminum Alloys
Presentation Title Effect of Sc and Zr Additions on Dispersoid Microstructure and Mechanical Properties of Hot-rolled AA5083 Alloys
Author(s) Ahmed Y. Algendy, Kun Liu, Paul Rometsch, Nick Parson, X.-Grant Chen
On-Site Speaker (Planned) X.-Grant Chen
Abstract Scope 5xxx aluminum alloys are traditionally considered non-heat-treatable. With the addition of Sc/Zr, two kinds of dispersoids (Mn-dispersoids and Al3(Sc,Zr)) were formed during heat treatment. The effect of Sc additions (0.08–0.43 wt.%) on the dispersoids and mechanical properties of hot-rolled sheets was investigated. The results showed that tensile properties initially increased with increasing Sc addition. The yield strength (YS) and ultimate tensile strength (UTS) of an alloy with 0.16 wt.% Sc reached 295 and 411 MPa, respectively, showing improvements of 30% in YS and 11.8% in UTS compared to the base alloy. However, with a further increase of Sc, the tensile properties declined owing to the formation of a line/fan-shaped microstructure associated with discontinuous Al3(Sc,Zr) precipitation during solidification. The evolution of Al3(Sc,Zr) and Mn-dispersoids during heat treatment and hot rolling was characterized using transmission electron microscopy. Their influence on the mechanical properties of hot-rolled AA5083 alloys was discussed.
Proceedings Inclusion? Planned: Light Metals
Keywords Aluminum, Characterization, Mechanical Properties

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

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Developing Al-Zr-Sc Alloys as High-temperature-resistant Conductors for Electric Overhead Powerline Applications
Dissolution and Development of Al3(Sc,Zr) Dispersoids in 5025 Structures Produced via Wire Arc Additive Manufacturing
E-30: Scandium Extraction from TiO2 Pigment Production Residues by Ion Exchange: Evaluation of Two Commercial Ion Exchange Resins
E-31: Effect of Sc on Surface Recrystallization of AA7050 Extrusions
Effect of Cooling Rate on W-phase Formation in Al-Cu-Sc Alloys
Effect of Sc and Zr Additions on Dispersoid Microstructure and Mechanical Properties of Hot-rolled AA5083 Alloys
Effect of Sc, Zr and Other REE on the 1XXX Conductive Aluminium Alloys Properties
Effect of Zr and Sc on Intermetallic Morphology and Hardening of an Al-Fe Alloy
Efficiency of Sc for Strengthening and Formability Improvement of 5XXX BiW Sheets
European Scandium for a Lighter and Greener Future
FEA Materials - AlSc Master Alloy Production Technology
Formation of Al3Sc Dispersoids and Associated Strengthening Mechanisms
Investigations into Optimized Industrial Pilot Scale BR Leaching for Sc Extraction
New Scandium Containing Aluminium Welding Wires for Wire + Arc Additive Manufacturing
Scandium Master Alloy Production via Sulfidation and Vacuum Aluminothermic Reduction
Solute Clustering during Natural Ageing in Al-Cu-(Sc)-(Zr) Alloys
Solvent Extraction of Scandium from Titanium Process Solutions
State of the Art Technologies for Scandium Recovery, Purification, and Aluminum-Scandium Alloy Production
Sustainable Scandium Recovery Method from Metallic 3D Printing Powders
Sustainable Selective Separation of Scandium from Acidic Industrial Wastes
The Development of New Aluminum Alloys for the Laser Powder-bed Fusion Process
Use of Sc to Improve the Properties of AA5083 Cast and Rolled Products

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