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

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 a...

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Bibliographic Details
Published in:Russian physics journal 2018-04, Vol.60 (12), p.2123-2129
Main Authors: Kolubaev, A. V., Zaikina, A. A., Sizova, O. V., Ivanov, K. V., Filippov, A. V., Kolubaev, E. A.
Format: Article
Language:English
Subjects:
Alloys
ALUMINIUM ALLOYS
Aluminum base alloys
Condensed Matter Physics
Condensed-State Physics
DEFORMATION
Deformation mechanisms
ELECTRON MICROSCOPY
FINE STRUCTURE
Friction stir welding
GRAIN SIZE
Hadrons
Heavy Ions
Lasers
LAYERS
Manganese
MANGANESE ALLOYS
MATERIALS SCIENCE
Mathematical and Computational Physics
Nuclear Physics
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
PLASTICITY
RECRYSTALLIZATION
SLIDING FRICTION
SURFACES
Theoretical
WELDED JOINTS
WELDING
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Summary: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.
ISSN:1064-8887
1573-9228
DOI:10.1007/s11182-018-1335-4