Plastic deformation behavior of ZK60 magnesium alloy with addition of neodymium

  • Kun Yu (余 琨)Email author
  • Xiao-yan Wang (王晓艳)
  • Shou-tai Rui (芮守泰)
  • Ri-chu Wang (王日初)


The hot deformation simulation of a ZK60 magnesium alloy at different temperatures from 373 to 673 K and different strain rates of 0.1, 0.01 and 0.002 s−1 was studied by using the Gleebe-1500 simulator. The plastic deformation behavior was measured and the deformation activation energy was calculated. The microstructures of ZK60 magnesium alloy with an addition of neodymium during the deformation process were observed by using Polyvar-MET optical microscope and Tecnai G2 20 TEM. The results show that the working hardening, the dynamic recovery and the dynamic recrystallization occur during the plastic deformation process at different temperatures and strain rates. The dynamic recrystallization starts when the temperature is over 473 K and the DRX grain size after hot deformation is only 5–10 μm. So the refined grains improve both the tensile strength and the elongation of alloys at room temperature. Neodymium is added into the alloy and a precipitate phase Mg12Nd that impedes the movement of dislocations is formed, which benefits to increasing mechanical properties of ZK60 magnesium alloy.

Key words

ZK60 magnesium alloy rare earth plastic deformation behavior dynamic recrystallization 


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Copyright information

© Central South University Press and Springer-Verlag GmbH 2008

Authors and Affiliations

  • Kun Yu (余 琨)
    • 1
    Email author
  • Xiao-yan Wang (王晓艳)
    • 1
  • Shou-tai Rui (芮守泰)
    • 1
  • Ri-chu Wang (王日初)
    • 1
  1. 1.School of Materials Science and EngineeringCentral South UniversityChangshaChina

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