Microstructure and Corrosion Behavior of the Friction Stir Welded Joints Made from Ultrafine Grained Aluminum

Abstract

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Influence of Friction Stir Weld Parameters on the Corrosion Susceptibility of EN AW‐7075 Weld Seam and Heat‐Affected Zone

“…[17] The influence of FSW parameters on different types of aluminum alloys with regard to mechanical and corrosion properties has been widely studied. [22][23][24][25][26] In this context, it has been pointed out that the heat input can be minimized by lowering the rotation speed while, at the same time, maintaining the traverse speed for better corrosion behavior. However, having sufficient frictional heat is crucial for providing the required temperature to influence corrosion behavior positively.…”

Microstructure and Mechanical Properties of the Joints from Coarse- and Ultrafine-Grained Al-Mg-Si Alloy Obtained via Friction Stir Welding

“…It is caused by a dynamic recrystallization that occurs in the stir zone (SZ) [ 11 ]. This indicates grain coarsening compared to the UFG size regime [ 12 ]. As a result, the mechanical strength of the welds decreases compared to the UFG material, but a moderate increase when compared to annealed Al is observed.…”