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Russian Metallurgy (Metally)

, Volume 2019, Issue 13, pp 1471–1478 | Cite as

Core Structure Formation in the Joints Fabricated by Friction Stir Welding of Metals with Polymorphic Transformations

  • A. A. Chularis
  • R. A. RzaevEmail author
  • O. G. Zotov
  • A. O. Zotova
WELDING TECHNOLOGIES. SOLDERING
  • 2 Downloads

Abstract

The microstructures of the weld core, the heat-deformation-affected zone, and the heat-affected zone having formed during the friction stir welding (FSW) of 12Kh18N10T steel and OT4-1 and VT-1 alloys are studied. The weld core of the solid-state FSW welded joints made of the metals and alloys that undergo polymorphic transformations is shown to form under structural superplasticity due to corporative recrystallization processes and phase transformations.

Keywords:

friction stir welding weld core heat-deformation-affected zone heat-affected zone recrystallization superplasticity 

Notes

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • A. A. Chularis
    • 1
  • R. A. Rzaev
    • 2
    Email author
  • O. G. Zotov
    • 3
  • A. O. Zotova
    • 3
  1. 1.Don State Technical UniversityRostov-on-DonRussia
  2. 2.Astrakhan State UniversityAstrakhanRussia
  3. 3.Peter the Great St. Petersburg Polytechnic UniversitySt. PetersburgRussia

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