Dissimilar Friction Stir Welding of AA2519 and AA5182 |
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| Authors: | Ivan S. Zuiko Sergey Malopheyev Sergey Mironov Rustam Kaibyshev |
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| Affiliation: | Laboratory of Mechanical Properties of Nanoscale Materials and Superalloys, Belgorod National Research University, Pobeda 85, 308015 Belgorod, Russia |
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| Abstract: | In this study, the friction-stir welding (FSW) technique was successfully applied for joining of AA2519 to AA5181 alloy. Microstructure and mechanical properties of dissimilar FSW joints were investigated by optical microscopy, microhardness, and tensile testing. The deformation behaviour of the welded joints was elucidated via the digital image correlation technique. After welding, the ultimate tensile strength of joints was ~300 MPa and ductility was ~16%. The microhardness values observed at the stir zone were higher than those in the base material AA5182. The produced welds demonstrate nearly 100% (based on AA5182) joint efficiency. |
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| Keywords: | friction stir welding dissimilar welding aluminium microstructure mechanical properties AA5182 AA2519 |
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