Tool wear and reactions in 304 stainless steel during friction stir welding

Yutaka S. Sato, Masahiro Muraguchi, Hiroyuki Kokawa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Citations (Scopus)


Four kinds of the welding tools made of PCBN, W, WC and Al 2O3 were applied to FSW of 304 stainless steel, and then the wear and reaction between the tool debris and the steel matrix were examined for each tool material. Severe tool damage was found in W, WC and Al 2O3 tools after FSW, while the PCBN tool was hardly worn. Formations of Cr-rich borides, ferrite phases containing the high W contents and Cr-rich carbides were found in the stir zones produced using PCBN, W and WC tools, respectively. It was suggested that formation of those phases could be expected by calculation using the thermochemical database.

Original languageEnglish
Title of host publicationAdvanced Material Science and Technology
PublisherTrans Tech Publications Ltd
Number of pages4
ISBN (Print)9783037850497
Publication statusPublished - 2011

Publication series

NameMaterials Science Forum
Volume675 677
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


  • 304 stainless steel
  • Friction stir welding
  • Microstructure
  • Reaction
  • Tool wear


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