Joining of Dissimilar Aluminum Alloys and Other Metals and Alloys by Friction-Stir Welding

A wide range of aluminum alloys and other metals and alloys, particularly dissimilar materials, have been friction-stir welded in this study. These include Al 5052/Al 7075, Al 7075/Al 2017, Al 5052/Al 2017, Al 7×1×(Sc)/Al 7×5×(Sc), Cu/brass, and 6061 Al with a thin Cu sheet in the butted seam to observe particulate flow in the dynamically recrystallized regime which facilitates solid-state welding.

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