| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Aluminum Alloys, Processing and Characterization
|
| Presentation Title |
Effect of Thermomechanical Processing on Strengthening of the 5181 Alloy (with 0.03 %Sc) Sheets for Preservation of 40 % Improved Strength Compared with 5083 |
| Author(s) |
Dmitry Fokin, Aleksandr Alabin, Sergey Valchuk, Viktor Mann, Aleksandr Krokhin |
| On-Site Speaker (Planned) |
Dmitry Fokin |
| Abstract Scope |
The aim of the paper is to determine regimes of thermomechanical processing of the 5181 alloy (Al-Mg-Sc system with 0.03%Sc) for preservation of 40% improved strength compared with 5083. The influence of cold work degree in the range of 30 - 70% and annealing regimes on mechanical properties of the 5181 sheets is investigated. The condition for achieving the required strength advantage over 5083 alloy is to ensure partially un-recrystallized structure in the 5181 sheets. It is shown that cold work degree has a significant effect on the recrystallization rate during annealing. With a decrease of the cold work degree, the softening of 5181 sheets shifts towards the areas of higher annealing temperatures and the softening curve becomes more flattened. This allows precise control of the high strength-elongation balance. Preferable fields of application for 5181 alloy are marine and automotive applications due to attractive combination of strength properties and cost. |
| Proceedings Inclusion? |
Planned: Light Metals |