Friction-Stir Welding of Work-Hardened Al-Mg Alloy with Nanoscale Particles

Sergey Mironov; Sergey Malopheyev; Igor Vysotskiy; Daria Zhemchuzhnikova; Rustam Kaibyshev

doi:10.4028/www.scientific.net/DDF.385.359

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Friction-Stir Welding of Work-Hardened Al-Mg Alloy with Nanoscale Particles

Abstract:

In this work, feasibility of friction-stir welding (FSW) for joining of heavily deformed 5083 aluminum alloy was studied. To produce work hardening condition, the commercially available material was homogenized to precipitate strengthening particles and then subjected to equal-channel angular pressing (ECAP) at 300 °C to a true strain of ~12 via B_C route and successive rolling at the same temperature to 80 pct. of thickness reduction. Despite the subsequent FSW resulted in significant microstructural changes in stir zone, joint efficiency was found to be 98 pct.

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Periodical:

Defect and Diffusion Forum (Volume 385)

Pages:

359-363

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.385.359

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Online since:

July 2018

Authors:

Sergey Mironov, Sergey Malopheyev, Igor Vysotskiy, Daria Zhemchuzhnikova*, Rustam Kaibyshev

Keywords:

Aluminium Alloy, Equal-Channel Angular Pressing (ECAP), Friction Stir Welding, Rolling, Ultrafine-Grained Structure

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