On the Similarity of Deformation Mechanisms During Friction Stir Welding and Sliding Friction of the AA5056 Alloy

A. V. Kolubaev, A. A. Zaikina, O. V. Sizova, K. V. Ivanov, A. V. Filippov, E. A. Kolubaev

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Abstract

A comparative investigation of the structure of an aluminum-manganese alloy is performed after its friction stir welding and sliding friction. Using the methods of optical and electron microscopy, it is shown that during friction identical ultrafine-grained structures are formed in the weld nugget and in the surface layer, in which the grains measure ~ 5 μm irrespective of the initial grain size of the alloy. An assumption is made that the microstructure during both processes under study is formed by the mechanism of rotational plasticity.

Original language	English
Pages (from-to)	2123-2129
Number of pages	7
Journal	Russian Physics Journal
Volume	60
Issue number	12
DOIs	https://doi.org/10.1007/s11182-018-1335-4
Publication status	Published - 1 Apr 2018

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Keywords

fragmentation
friction stir welding
microstructure
plastic deformation
plastic flow
recrystallization
sliding friction

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Kolubaev, A. V., Zaikina, A. A., Sizova, O. V., Ivanov, K. V., Filippov, A. V., & Kolubaev, E. A. (2018). On the Similarity of Deformation Mechanisms During Friction Stir Welding and Sliding Friction of the AA5056 Alloy. Russian Physics Journal, 60(12), 2123-2129. https://doi.org/10.1007/s11182-018-1335-4

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AU - Kolubaev, A. V.

AU - Zaikina, A. A.

AU - Sizova, O. V.

AU - Ivanov, K. V.

AU - Filippov, A. V.

AU - Kolubaev, E. A.

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AB - A comparative investigation of the structure of an aluminum-manganese alloy is performed after its friction stir welding and sliding friction. Using the methods of optical and electron microscopy, it is shown that during friction identical ultrafine-grained structures are formed in the weld nugget and in the surface layer, in which the grains measure ~ 5 μm irrespective of the initial grain size of the alloy. An assumption is made that the microstructure during both processes under study is formed by the mechanism of rotational plasticity.

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KW - microstructure

KW - plastic deformation

KW - plastic flow

KW - recrystallization

KW - sliding friction

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Access to Document

10.1007/s11182-018-1335-4