Tensile behavior of friction-stir welded AZ31 magnesium alloy

S. Mironov, T. Onuma, Y. S. Sato, S. Yoneyama, H. Kokawa

Research output: Contribution to journalArticlepeer-review

75 Citations (Scopus)


In this work, electron backscatter diffraction (EBSD) and digital image correlation were employed to study tensile behavior of friction-stir welded magnesium alloy AZ31. The character of measured strain patterns indicated the prevalence of basal slip but also suggested significant activity of prism slip. A substantial strain gradient was found lengthways in the stir zone. The failure was shown to be initiated at the weld root and to originate from double {101¯1}−{101¯2} twinning. Crack propagation was influenced by the “onion-ring structure” of the stir zone.

Original languageEnglish
Pages (from-to)272-281
Number of pages10
JournalMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
Publication statusPublished - 2017 Jan 2


  • EBSD
  • Magnesium alloys
  • Strain measurement
  • Thermomechanical processing
  • Twinning
  • Welding


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