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Thermal Deformation Behavior and Processing Maps of As-Homogenized Mg-5.8 Zn-0.5 Zr-1.0 Yb Alloy

  • Lu LiEmail author
  • Hao Li
  • Wei Jiang
  • Zhiyuan Pan
  • Yu Wang
  • Tao Wang
Aluminum and Magnesium: High Strength Alloys for Automotive and Transportation Applications


Isothermal compression tests at temperatures of 250–400°C and strain rates of 0.001–1 s−1 were performed in a Gleeble-1500 thermal simulator to investigate the hot deformation behavior of as-homogenized Mg-5.8 Zn-0.5 Zr-1.0 Yb alloy. The Arrhenius-type constitutive equation and hot processing maps were established based on these experiments. Two dynamic recrystallized (DRX) domains were identified as (1) 280–350°C and 0.15–1 s−1; (2) 330–400°C and 0.001–0.09 s−1. The DRX mechanisms of the above-mentioned two domains and the instability patterns of the unstable regions were analyzed by optical microscopy and electron backscatter diffraction. The results provide a fundamental insight into the processing design, microstructural evolution, and property control of the newly developed Mg-Zn-Zr-Yb alloy.



This work was financially supported by the National Natural Science Foundation of China (51605392).

Conflict of interest

The authors declare that there is no conflict of interest.

Supplementary material

11837_2018_3309_MOESM1_ESM.pdf (1.2 mb)
Supplementary material 1 (PDF 1267 kb)


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  1. 1.Faculty of Materials and EnergySouthwest UniversityChongqingPeople’s Republic of China

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