About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Metal-Matrix Composites: Analysis, Modeling, Observations and Interpretations
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Presentation Title |
Investigation of Friction Stir Spot Welding of Aluminium Alloys using Zinc as an Interlayer |
Author(s) |
Pragya Rai, Sushanta Kumar Panda, Jinu Paul |
On-Site Speaker (Planned) |
Pragya Rai |
Abstract Scope |
The present work focussed on the role of zinc (Zn) interlayer in enhancing the mechanical performance of friction stir spot weld (FSSW) of AA8011-H24 sheets material. The FSSW weld was fabricated successfully with and without interlayer using tool rotational speed, plunge depth, and dwell time of 2600 rpm, 0.2 mm, and 10 s respectively. Moreover, the mechanical performance of spot weld with and without interlayer was evaluated by lap shear test. After the lap shear test, different failure modes of weld nugget were observed through scanning electron microscope (SEM) fractographs. It was found that the lap shear failure load as well as percent elongation increased significantly by ~86% and ~90% respectively using zinc as an interlayer. The welds zones were characterized by metallographic examination, X-ray diffraction, and SEM. Microstructure evolution due to the presence of zinc interlayer was analyzed to get insight into the improvement of mechanical performance. |
Proceedings Inclusion? |
Planned: |