About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Melt Processing, Casting and Recycling
|
| Presentation Title |
The Effect of Direct-Chill Casting on Microstructure and Mechanical Properties of AA5083 (EN AW 5083) Aluminum Alloy Slab Ingot |
| Author(s) |
Pascal Gauthier, Alexandre Maltais, Jose Ceballos, Mehdi Shafiei |
| On-Site Speaker (Planned) |
Pascal Gauthier |
| Abstract Scope |
The AA5083 aluminum product offers high precision surface, superior dimensional stability, and outstanding corrosion resistance properties, making it a popular alloy choice for precision tooling fabrication applications. However, due to its large solidification temperature range, the 5083 alloy is known for its susceptibility to centerline macrosegregation and non-equilibrium solidification during the direct chill (DC) casting process, especially in large-size slabs. The formation, the evolution and the distribution of particles, such as magnesium and iron phases, in 5xxx alloys can affect the local chemical composition in different regions of the same ingot. Moreover, it has been found that these particles, which form at grain boundaries or within interdendritic areas during the solidification process, can influence the product’s microstructure and mechanical properties. This paper presents an initial investigation on specimens exhibiting distinct mechanical properties, followed by a comprehensive study of an AA5083 ingot to characterize its overall property variations and to correlate these fluctuations with their potential impact on the final properties of as-cast and milled products. |
| Proceedings Inclusion? |
Planned: Light Metals |
| Keywords |
Aluminum, Solidification, Characterization |