About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Processing and Characterization
|
Presentation Title |
Weldability Study of AlMg5ScZr Alloys versus Common 5083 Alloy |
Author(s) |
Dionysios Spathis, John Tsiros, Andreas Mavroudis, Vassilis Stergiou |
On-Site Speaker (Planned) |
Dionysios Spathis |
Abstract Scope |
The current study shows the influence of Sc and Zr element additions in the heat affected zone of 5083 alloy fusion welds.
Tungsten inert gas (TIG) welding tests of 3 mm thick AlMg5ScZr alloy sheets in temper H2X were carried out at Hellenic Aerospace Industry facilities. For comparison purposes 3 mm thick sheets of a typical alloy 5083 (AlMg4,8Mn0,5) in temper H321 were also welded under the same welding conditions.
Welded samples were analyzed regarding mechanical and micro hardness properties. Heat affected zone microstructure of the weld was studied under light optical microscope. Heat affected zone recrystallization zone length is reduced significantly in the case of Sc containing alloys. On the other hand, the 5083 alloy shows extended recrystallization in the heat affected zone. Such microstructural improvements in heat affected zone of alloy AlMg5ScZr increase effectively the overall weld strength as illustrated by the mechanical properties testing of weld. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, |