Abstract
The present work is focused on the effect of corrosion exposure on 2024-T3 electron beam welded joints. Sheets were face-to-face electron beam welded and tensile specimens were extracted from the sheets. The welded region was in the middle section of their gauge length. The specimens were exposed to exfoliation corrosion solution and for different exposure times to investigate the effect on the tensile mechanical properties. Non-corroded specimens showed that the joining efficiency of electron beam welded specimens is ~70%. Conventional yield stress decreased with corrosion exposure time, with small exposure times (<8 h) exhibiting a high corrosion-induced decrease rate. Corrosion-induced decrease of tensile elongation at fracture seems to follow an exponential correlation against corrosion exposure time. Fracture started always from the weld’s root and for small exposure times fracture occurred within the fusion zone.
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