PSI - Issue 17

Madhav Raturi et al. / Procedia Structural Integrity 17 (2019) 495–502

502

Madhav Raturi et al. / Structural Integrity Procedia 00 (2019) 000 – 000

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• Relatively high impact toughness was recorded for joints prepared with TPZ tool pin at tool rotation and welding speed combination of 900 rpm, 63 mm/min and 660 rpm, 36 mm/min. Toughness of all joints was also found to be reasonably higher than the toughness of base materials. • Fractographic observations by FE-SEM denoted presence of numerous dimples in most joints indicating a ductile dominated fracture of samples.

Acknowledgements

Authors acknowledge the Science and Engineering Research Board (SERB) of DST, New Delhi, India for the financial support (project number YSS/2015/000085). References Heidarzadeh, A., Khodaverdizadeh, H., Mahmoudi, A., Nazari, E., 2012. Tensile behavior of friction stir welded AA 6061-T4 aluminum alloy joints. Materials and Design 37, 166 – 173. Jonckheere, C., Meestera, B., Denquin, A., Simara. A., 2013. Torque, temperature and hardening precipitation evolution in dissimilar friction stir welds between 6061-T6 and 2014-T6 aluminum alloys. Journal of Materials Processing Technology 213,826 – 837. Kadaganchi, R., Gankidi, M. R., Gokhale, H., 2015. Optimization of process parameters of aluminum alloy AA 2014-T6 friction stir welds by response surface methodology. Defence Technology 11, 209 – 219. Lim, S., Kim, S., Lee, C., Kim, S., 2004. Tensile Behavior of Friction-Stir-Welded Al 6061-T651. Metallurgical and Materials Transactions A 35, 2829 – 2835. Mishra, R. S., Ma, Z. Y., 2005. Friction stir welding and processing. Materials Science and Engineering: R: Reports 50, 1 – 78. Raturi, M., Garg, A., Bhattacharya, A., 2019. Joint strength and failure studies of dissimilar AA6061-AA7075 friction stir welds: Effects of tool pin, process parameters and preheating. Engineering Failure Analysis 96, 570 – 588. Thomas, W.M., Nicholas, E.D., Needham, J.C., Murch, M.G., Templesmith, P., Dawes, C.J., 1991. Improvement relating to friction welding. Int. Patent Application No. PCT/GB92/02203, US Patent No. 5460317, EP Patent No. EP0653265A2 Ǥ Zhao, Y., Lin, S., Wu, L., Qu, F., 2005. The influence of pin geometry on bonding and mechanical properties in friction stir weld 2014 Al alloy. Materials Letters 59, 2948 – 2952.