Journal of Materials Science

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

Microstructure and mechanical properties of friction stir welded copper

Article

Abstract

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.

Reference

  1. 1.
    Thomas WM, Nicholas ED (1997) Mater Design 18(4/6):269CrossRefGoogle Scholar
  2. 2.
    Liu HJ, Fujii H, Maeda M, Nogi K (2003) J Mater Process Technol 142:692CrossRefGoogle Scholar
  3. 3.
    Mukhopadhyay J, Sengar GS, Sakthivel T (2006) TMS 2006:103Google Scholar
  4. 4.
    Lienert TJ, Stellwag WL Jr, Grimmett BB, Warke RW (2003) Welding J January 2003(Suppl):1SGoogle Scholar
  5. 5.
    Ericsson M, Sandström R (2003) Int J Fatigue 25:1379CrossRefGoogle Scholar
  6. 6.
    Colligan K (1999) Welding Res July 1999(Suppl):229Google Scholar
  7. 7.
    Venugopal T, Srinivasa Rao K, Prasad Rao K (2004) Trans Indian Inst Met 57(6):659Google Scholar
  8. 8.
    Bhadeshia HKDH (2003) INCAL’03 1:195Google Scholar
  9. 9.
    Lee W-B, Jung S-B (2004) Mater Lett 58:1041CrossRefGoogle Scholar
  10. 10.
    Park HS, Kimura T, Murakami T, Nagano Y, Nakata K, Ushio M (2004) Mater Sci Eng A 371:160CrossRefGoogle Scholar

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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