Journal of Materials Science

, Volume 42, Issue 19, pp 8126–8129 | Cite as

Microstructure and mechanical properties of friction stir welded copper

  • T. SakthivelEmail author
  • J. Mukhopadhyay


The main objective of this investigation was to apply friction stir welding technique (FSW) for joining of 2 mm thick copper sheet. The defect free weld was obtained at a tool rotational and travel speed of 1,000 rpm and 30 mm/min, respectively. Mechanical and microstructural analysis has been performed to evaluate the characteristics of friction stir welded copper. The microstructure of the weld nugget (WN) consists of fine equiaxed grains. Similarly, the elongated grains in the thermomechanically affected zone (TMAZ) and coarse grains in the heat-affected zone (HAZ) were observed. The hardness values in the WN were higher than the base material. Eventually HAZ shows lowest hardness values because of few coarse grains presence. Friction stir welded copper joints passes 85% weld efficiency as compared to the parent metal.


Welding Friction Stir Welding Friction Stir Welding Weld Zone Parent Metal 


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Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Jawaharlal Nehru Aluminium Research Development and Design CentreNagpurIndia

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