الفهرس 
Literature surveyOnly 14 pages are availabe for public view
 |  | from | 169 |  |  |
| | | from | 169 | | |
Abstract
The dissimilar 2024- T3 and 7075- T6 aluminum alloys in the form of 10 mm thick sheets have been successfully joined by friction stir welding. The resulting microstructure has been widely investigated by optical microscopy, putting in evidence the grain structure and precipitates distribution differences originated by the process. Finally, the welded joints static and dynamic properties have been mechanically evaluated by means of tensile tests. Hardness minima were observed in the HAZ both sides and their values increased with welding speed. Quite wider . scattering of hardness was observed in the SZ corresponding to the onion ring pattern. Defect-free joints were fractured in the HAZ on 2024 Al alloy side, viz. hardness minimum area