Research on local corrosion behavior of thermo-mechanically affected zone in dissimilar AA2024/7075 friction stir welds

The aluminum alloys joints welded by friction stir welding (FSW) are usually fractured in or near the thermo-mechanically affected zone (TMAZ) of the welded zone, and different microstructural zones produced by FSW affect the corrosion resistance of the joints. In the present work, we performed the research on local corrosion behavior of the TMAZ in dissimilar AA2024/7075 joints by employing multiple characterization and measurement techniques....