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@article{171098,
        author = {Nigam Verma and Atul Suri},
        title = {Microstructural Observations in Friction Stir Welding of Dissimilar Alloys: - A Critical Review},
        journal = {International Journal of Innovative Research in Technology},
        year = {2024},
        volume = {11},
        number = {7},
        pages = {2720-2728},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=171098},
        abstract = {A promising method for combining incompatible metals, friction stir welding (FSW) allows for special material combinations that maximise performance in the automotive, marine, and aerospace industries. However, it can be difficult to achieve uniform mechanical characteristics and microstructural quality throughout the weld joint due to the intricacy of fusing different metals. The microstructural changes and defect forms in FSW of dissimilar alloys, such as magnesium-aluminum, aluminum- steel, and aluminum-copper combinations, are rigorously examined in this paper. Important elements that affect microstructure are covered in detail, including alloy composition, welding conditions, and tool geometry. Within the stir zone, thermomechanical affected zone (TMAZ), and heat-affected zone (HAZ), the development of intermetallic compounds (IMCs), grain refinement, and hardness fluctuations are highlighted. Understanding characterisation methods like energy-dispersive X-ray spectroscopy (EDS) and scanning electron microscopy (SEM) provide a thorough grasp of microstructural alterations and how they affect corrosion resistance and joint strength. Along with highlighting present issues including thermal incompatibility and IMC brittleness, the paper offers solutions for improving FSW procedures. In order to direct future research towards producing dependable and superior joints in challenging applications, this work attempts to expand our understanding of FSW in dissimilar alloys.},
        keywords = {Friction stir welding (FWS),Intermetallic compounds (IMCs), heat-affected zone(HAZ), Dissimilar alloys.},
        month = {December},
        }