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Investigations on the Effect of Cyclic Heat Treatment on the Mechanical Properties of Friction Stir Welded Aluminum Alloys (AA5052 & AA6061)

  • PHYSICAL METALLURGY AND HEAT TREATMENT
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Abstract

Friction stir welding is one of the promising techniques to join dissimilar aluminum alloys. In this study, the friction stir welding technique is implemented to enable a sound butt-joint between aluminum alloy AA5052 and AA6061. The study investigates the influence of conventional heat treatment and newly-devised cyclic treatment on the properties of the friction stir weldment. The results indicate that the newly-devised cyclic heat treatment increases the microhardness by ~22%, tensile strength by ~22%, and ductility by 20% than the conventionally heat-treated specimens. The mechanism of property enhancement in the weldment is comprehensively correlated with the microstructural evolution.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Coimbatore, India

    Chikkam Srikanth,  R. Vaira Vignesh &  R. Padmanaban

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  1. Chikkam Srikanth
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  2. R. Vaira Vignesh
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  3. R. Padmanaban
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Correspondence to Chikkam Srikanth, R. Vaira Vignesh or R. Padmanaban.

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Srikanth, C., Vignesh, R.V. & Padmanaban, R. Investigations on the Effect of Cyclic Heat Treatment on the Mechanical Properties of Friction Stir Welded Aluminum Alloys (AA5052 & AA6061). Russ. J. Non-ferrous Metals 62, 692–707 (2021). https://doi.org/10.3103/S1067821221060079

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  • DOI: https://doi.org/10.3103/S1067821221060079

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