Abstract
In this study, AA6061 plates of 6 mm thickness were subjected to friction stir processing with 50% pin overlapping to produce bulk area fine grain structure using three different tool geometries. Post-processing heat treatment was carried for all samples to investigate the effect of different tool geometries on microstructure and micro-hardness of AA6061. 3D optical microscope and Vickers micro-hardness tester were employed to examine the microstructure and micro-hardness, and results have been reported. From an analysis, it was observed that post-processing heat treatment improved the properties and among three different tool geometries, the samples processed with the hexagonal pin profile yield the best results.
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Acknowledgements
The authors are very much thankful to the Aeronautical Research Board and Development (ARDB), New Delhi, India, for providing the financial assistance through the grant CCTM/TM/ARDB/GIA/16-17/0332, dated 17/01/2017 and National Institute of Technology, Warangal, India, for providing the laboratory facilities to carry out the project smoothly.
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Chauhan, K., Satyanarayana, M.V.N.V., Kumar, A. (2020). Effect of Tool Geometry and Heat Treatment on Friction Stir Processing of AA6061. In: Voruganti, H., Kumar, K., Krishna, P., Jin, X. (eds) Advances in Applied Mechanical Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-1201-8_101
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DOI: https://doi.org/10.1007/978-981-15-1201-8_101
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