4.7 Article

Pre-strain rolling as an effective tool for suppression of abnormal grain growth in friction-stir welded 6061 aluminum alloy

Publisher

ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2018.07.026

Keywords

Aluminum alloys; Plasticity methods; Grains and interfaces

Funding

  1. Ministry of Education and Science of the Russian Federation [14.584.21.0023, RFMEFI58417X0023]

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In this work, pre-strain rolling to a small thickness reduction was applied to friction-stir welded 6061 aluminum alloy to suppress abnormal grain growth during post-weld heat treatment. This approach enabled to produce nearly homogeneous microstructure distribution across the weld and thus to avoid strain localization during transverse tensile tests.

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