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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2 Citations (Scopus)

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 languageEnglish
Pages (from-to)2123-2129
Number of pages7
JournalRussian Physics Journal
Volume60
Issue number12
DOIs
Publication statusPublished - 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)

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