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Texture–Microstructure Correlation in Hot-Rolled AZ31

  • Hossein Aghamohammadi
  • Seyed Jamal Hosseinipour
  • Sayed Mahmood Rabiee
  • Roohollah JamaatiEmail author
Technical Paper
  • 10 Downloads

Abstract

The paper presents a correlation between microstructure and crystallographic texture in hot-rolled AZ31 magnesium alloy. The microstructure and texture evolution are investigated using optical microscopy, field emission scanning electron microscopy, X-ray diffraction, respectively. The results indicated discontinuous dynamic recrystallization, twinning dynamic recrystallization, and particle stimulated nucleation as the main mechanisms during hot deformation. The average size of grains decreased from 19 to 1 μm as the rolling reduction increased from 0 to 60%. A large area fraction of new grains was observed at 40% thickness reduction. At the beginning of plastic deformation, basal slip and extension twinning increased the intensity of {0001} basal fiber texture. Dynamic recrystallization had a considerable effect on weakening the basal texture. Interestingly, some unusual highly stable components including \( (01\bar{1}3)[7\bar{8}13],(01\bar{1}3)[\bar{2}110] , \) and \( (01\bar{1}3)[14\bar{5}\bar{3}] \) existed at all deformation conditions and their intensity remained nearly unchanged.

Keywords

Magnesium alloys Hot rolling Crystallographic texture 

Notes

Acknowledgements

The authors acknowledge the funding support of Babol Noshirvani University of Technology through Grant Program Nos. BNUT/370203/98, BNUT/370388/98, and BNUT/393044/98.

References

  1. 1.
    Xu W, Birbilis N, Sha G, Wang Y, Daniels J E, Xiao Y, and Ferry M, Nat Mater 14 (2015) 1229.CrossRefGoogle Scholar
  2. 2.
    Kim D G, Lee K M, Lee J S, Yoon Y O, and Son H T, Mater. Lett. 75 (2012) 122.CrossRefGoogle Scholar
  3. 3.
    Su J, Sanjari M, Kabir A S H, Jung I H, Jonas J J, Yuea S, and Utsunomiya H, Mater Sci Eng A 636 (2015) 582.CrossRefGoogle Scholar
  4. 4.
    Li Q, and Tian B, Mater Lett 67 (2012) 81.CrossRefGoogle Scholar
  5. 5.
    Zhang Z, Mater Lett 116 (2014) 131.CrossRefGoogle Scholar
  6. 6.
    Ostapovets A, Bursik J, Krahula K, Kral L, and Serra A, Philos Mag 97 (2017) 1088.CrossRefGoogle Scholar
  7. 7.
    Guan D, Rainforth W M, Gao J, Sharp J, Wynne B, and Ma L, Acta Mater 135 (2017) 14.CrossRefGoogle Scholar
  8. 8.
    Guo F, Zhang D, Wu H, Jiang L, and Pan F, J Alloys Compd 695 (2017) 396.CrossRefGoogle Scholar
  9. 9.
    Koike J, Metall Mater Trans A 36 (2005) 1689.CrossRefGoogle Scholar
  10. 10.
    Humphreys J, Rohrer G S, and Rollett A, Recrystallization and Related Annealing Phenomena, Third Edition, Elsevier, Oxford (2017).Google Scholar

Copyright information

© The Indian Institute of Metals - IIM 2019

Authors and Affiliations

  1. 1.Department of Materials EngineeringBabol Noshirvani University of TechnologyBabolIran

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