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Microstructure and Mechanical Properties of Welds of Al – Mg – Si Alloys After Different Modes of Impulse Friction Stir Welding

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Metal Science and Heat Treatment Aims and scope

Welded joints of aluminum alloy 6082-T6 formed by the method of impulse friction stir welding are studied. The effect of the power and frequency of the pulses on the microstructure and mechanical properties of the welded joints is determined. Application of an additional pulse during the welding affects the surface quality and the shape of the weld, the distribution of the oxide layer and of particles of the hardening phase, and the grain size in the zone of dynamic recrystallization.

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The work has been performed at the Peter the Great St. Petersburg Polytechnic University within Agreement No. 14.Z50.31.0018 with the Ministry of Education and Science of the Russian Federation.

The authors are sincerely grateful to Sebastian Boltz (Department of Metal Science and Technology of Materials of the Brandenburg University of Technology) for the assistance in the scanning electron microscope studies.

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Authors and Affiliations

  1. St. Petersburg Polytechnic University, St. Petersburg, Russia

    S. Yu. Kondrat’ev, Yu. N. Morozova, Yu. A. Golubev, A. A. Naumov & V. G. Mikhailov

  2. Brandenburg University of Technology, Cottbus, Germany

    Yu. N. Morozova, Yu. A. Golubev, C. Hantelmann & V. G. Mikhailov

Authors
  1. S. Yu. Kondrat’ev
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  2. Yu. N. Morozova
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  3. Yu. A. Golubev
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  4. C. Hantelmann
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  5. A. A. Naumov
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  6. V. G. Mikhailov
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Corresponding author

Correspondence to S. Yu. Kondrat’ev.

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Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 11, pp. 25 – 30, November, 2017.

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Kondrat’ev, S.Y., Morozova, Y.N., Golubev, Y.A. et al. Microstructure and Mechanical Properties of Welds of Al – Mg – Si Alloys After Different Modes of Impulse Friction Stir Welding. Met Sci Heat Treat 59, 697–702 (2018). https://doi.org/10.1007/s11041-018-0213-6

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  • DOI: https://doi.org/10.1007/s11041-018-0213-6

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