Effect of microstructure on properties of friction stir welded Inconel Alloy 600

Y. S. Sato, P. Arkom, H. Kokawa, T. W. Nelson, R. J. Steel

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102 Citations (Scopus)


Friction stir welding (FSW) has been widely used to metals with moderate melting temperatures, primarily Al alloys. Recently, tool materials that withstand high stresses and temperatures necessary for FSW of materials with high melting temperatures have been developed. In the present study, polycrystalline cubic boron nitride (PCBN) tool was used for partially penetrated FSW of Inconel Alloy 600, and a defect-free weld was successfully produced. Microstructural characteristics, mechanical and corrosion properties in the weld were examined. The weld had better mechanical properties than the base material due to formation of fine grain structure in the stir zone, but exhibited slightly the lower corrosion resistance in a part of the stir zone and heat-affected zone (HAZ).

Original languageEnglish
Pages (from-to)250-258
Number of pages9
JournalMaterials Science and Engineering: A
Issue number1-2
Publication statusPublished - 2008 Mar 25


  • Corrosion properties
  • Friction stir welding
  • Inconel Alloy 600
  • Mechanical properties
  • Microstructure


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