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Study of Microstructures and Mechanical Properties of Friction Stir Welded Pure Aluminum | ||
| Al-Qadisiyah Journal for Engineering Sciences | ||
| Article 1, Volume 8, Issue 1, 2015, Pages 73-81 PDF (0 K) | ||
| Author | ||
| Hayder A. M. Al-Hameedi | ||
| Abstract | ||
| In this study commercially pure aluminum sheets were welded using friction stir welding (FSW) process. Three rotational speeds of 800, 1100 and 1500 rpm were used. The axial force, passing speed, and tool geometry were constant. Parameters were optimized depending on the results of the macrograph, micrographic, microhardness, and tensile strength. The results showed that the sound joint with the best possible microstructure and mechanical properties was obtained at a rotational speed of 1100 rpm. The microscopic and local mechanical properties proposed that mechanical mixing is the main material flow mechanism in the formation of the nugget zone (NZ). | ||
| Keywords | ||
| Friction stir welding; Microstructure; Heat affected zone; Weld nugget | ||
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