Microstructure and mechanical properties of friction stir welded joints made from ultrafine grained aluminium 1050

Marta Lipińska, Lech Olejnik, Adam Pietras, Andrzej Rosochowski, Piotr Bazarnik, Jacek Goliński, Tomasz Brynk, Małgorzata Lewandowska

Research output: Contribution to journalArticle

27 Citations (Scopus)
41 Downloads (Pure)

Abstract

In order to obtain ultrafine grained structure, commercially pure aluminium (Al 1050) plates were subjected up to 8 passes of Incremental Equal Channel Angular Pressing (IECAP) following route C. Plates in different stages of IECAP were joined using Friction Stir Welding (FSW). All welded samples were investigated to determine their mechanical properties and structure evolution in the joint zone. The joining process reduced mechanical strength of material in the nugget zone, which was explained by the grain growth resulting from temperature rise during FSW. Nevertheless, the obtained results are promising in comparison to other methods of joining aluminium.

Original languageEnglish
Pages (from-to)22-31
Number of pages10
JournalMaterials and Design
Volume88
Early online date29 Aug 2015
DOIs
Publication statusPublished - 25 Dec 2015

Keywords

  • aluminium
  • friction stir welding
  • incremental equal channel angular pressing
  • mechanical properties
  • microstructure

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