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Volume 25 Issue 12
Dec.  2018
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Tevfik Küçükömeroğlu, Semih M. Aktarer, Güven İpekoğlu, and Gürel Çam, Microstructure and mechanical properties of friction-stir welded St52 steel joints, Int. J. Miner. Metall. Mater., 25(2018), No. 12, pp. 1457-1464. https://doi.org/10.1007/s12613-018-1700-x
Cite this article as:
Tevfik Küçükömeroğlu, Semih M. Aktarer, Güven İpekoğlu, and Gürel Çam, Microstructure and mechanical properties of friction-stir welded St52 steel joints, Int. J. Miner. Metall. Mater., 25(2018), No. 12, pp. 1457-1464. https://doi.org/10.1007/s12613-018-1700-x
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研究论文

Microstructure and mechanical properties of friction-stir welded St52 steel joints

  • 通讯作者:

    Güven İpekoğlu    E-mail: guven.ipekoglu@iste.edu.tr

  • The aim of this work is to investigate the mechanical properties and microstructures of friction-stir welded (FSWed) St52 structural steel joints. In this study, St52 steel plates with a thickness of 4 mm were butt-welded by friction-stir welding (FSW) using a tungsten carbide tool having a conical pin. The microstructure of the welded zone consists of equiaxed fine ferrite, grain boundary ferrite, Widmanstatten ferrite, and aggregates of ferrite + cementite. The microhardness measurements showed that the hardness of the welded zone was significantly higher than that of the base metal. The FSWed St52 joint exhibited a significant strength overmatching in the weld region and a strength performance similar to or slightly higher than that of the base plate.
  • Research Article

    Microstructure and mechanical properties of friction-stir welded St52 steel joints

    + Author Affiliations
    • The aim of this work is to investigate the mechanical properties and microstructures of friction-stir welded (FSWed) St52 structural steel joints. In this study, St52 steel plates with a thickness of 4 mm were butt-welded by friction-stir welding (FSW) using a tungsten carbide tool having a conical pin. The microstructure of the welded zone consists of equiaxed fine ferrite, grain boundary ferrite, Widmanstatten ferrite, and aggregates of ferrite + cementite. The microhardness measurements showed that the hardness of the welded zone was significantly higher than that of the base metal. The FSWed St52 joint exhibited a significant strength overmatching in the weld region and a strength performance similar to or slightly higher than that of the base plate.
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