• Subramanian, R. Siva
• Dass, M. Mohan
• Gopikumar, S.
• Prakash, B. Vijaya
• Sandeep, Ch
• Ramalingam, P. Sethu

Abstract

<jats:p>&lt;div class="section abstract"&gt;&lt;div class="htmlview paragraph"&gt;Aluminum alloy AA2024 stands out as a widely utilized age-hardening alloy inaircraft applications worldwide. Despite its superior weldability in comparisonto its 6000-series counterparts, AA2024 still reveals vulnerability in thewelded joint. Specifically, in the T6 condition, the joint strength is onlyabout 40% of the strength exhibited by the base metal. Faced with thischallenge, design engineers often resort to selecting thicker base metal platesdue to notable disparities in strength values, particularly concerning yieldstrength. AA2024 alloy is welded using low heat input electron beam welding.This weld is eliminated all demerits in other fusion welding process. However,heat affected zone is always a weaker region in all the fusion welding process.Post weld heat treatment process, namely, solution treatment and artificialageing was performed to dimmish the width of weaker region. Of which, the jointtreated with solution treatment followed by ageing yielded higher strength. Itmay be attributed by distribution of strengthening precipitates.&lt;/div&gt;&lt;/div&gt;</jats:p>

Topics

• impedance spectroscopy
• aluminium
• strength
• precipitate
• aging