Simulation of dynamic recrystallization process during friction stir welding of AZ91 magnesium alloy

ASADI P., Givi M. K. B., Akbari M.

International Journal of Advanced Manufacturing Technology, cilt.83, sa.1-4, ss.301-311, 2016 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 83 Sayı: 1-4
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s00170-015-7595-z
  • Dergi Adı: International Journal of Advanced Manufacturing Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.301-311
  • Anahtar Kelimeler: AZ91 magnesiumalloy, Cellular automaton, DRX, FSWsimulation, Laasraoui-Jonas model, Microstructural evolution
  • Marmara Üniversitesi Adresli: Evet

Özet

In the present research, a continuum-based thermomechanically coupled rigid-viscoplastic finite element model is proposed in Deform-3D software to simulate the friction stir welding (FSW) of AZ91 magnesium alloy. Then, to consider the microstructure evolution of the weld zone, a model is established based on the combination of cellular automaton and Laasraoui-Jonas models. The simulated microstructure of the weld zone is compared with the experiment one. Furthermore, the ability of presented model in demonstrating the nucleation and grain growth stages during dynamic recrystallization (DRX) is considered.