Abstract
The properties of dissimilar aluminum-steel lap joints performed by FSW were studied in this investigation, using AA6082-T6 aluminum alloy and S355JR steel. The effect of the bonded area on the mechanical and microstructural properties of the joints was analyzed combining different numbers of overlap passes. Microstructural features were analyzed by optical and scanning electron microscopy; while mechanical performance was investigated in terms of microhardness and shear tensile testing. Different fracture modes of shear tensile specimens such as interfacial failure and aluminum HAZ failure were observed, being related to the bonded interface section. No volumetric defects were found in the metallographic examination. The formation of intermetallic compounds was analyzed by SEM. Encouraging results were obtained regarding the wear and durability of FSW tools using WC-Co as probe material.
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Aldanondo, E., Arruti, E., Garagorri, J., Echeverria, A. (2015). Dissimilar Aluminum-Steel FSW Lap Joints. In: Mishra, R.S., Mahoney, M.W., Sato, Y., Hovanski, Y. (eds) Friction Stir Welding and Processing VIII. Springer, Cham. https://doi.org/10.1007/978-3-319-48173-9_15
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DOI: https://doi.org/10.1007/978-3-319-48173-9_15
Publisher Name: Springer, Cham
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