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Influence of Initial Microstructure on the Hot Working Flow Stress of ZK60 Mg Alloy

  • Yunteng Liu
  • Di Zhang
  • Tao Lin
  • Jixue Zhou
  • Yu Liu
  • Changwen Tian
  • Yuansheng Yang
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

The hot working flow stress of as-cast and two as-extruded magnesium alloys ZK60 was investigated through uniaxial compression tests. It was found that the hot deformation behavior was sensitive to the deformation conditions and initial microstructure. The peak flow stress was affected by the deformation temperature and the strain rate. Its value was decreased with increasing the deformation temperature or decreasing the deformation rate. The peak flow stresses for the as-cast and as-extruded samples showed a different Z dependency. However, the correlations between Z parameters and as-extruded materials with different initial microstructures were almost the same. These key features of deformation behavior can be explained by twinning and dynamic recrystallization.

Keywords

Magnesium alloys Initial microstructure Uniaxial compression High temperature Deformation behavior 

Notes

Acknowledgements

This work was supported by “The National Key Research and Development Program of China” (No. 2017YFB0103904, 2016YFB0301105), Shandong Provincial Natural Science Foundation, China (No. ZR2015EQ 019).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Shandong Key Laboratory for High Strength Lightweight Metallic MaterialsAdvanced Materials Institute, Shandong Academy of SciencesJinanChina
  2. 2.College of Materials Science and EngineeringShandong Jianzhu UniversityJinanChina
  3. 3.Shandong Engineering Research Center for Lightweight Automobiles Magnesium AlloysJinanChina
  4. 4.Institute of Metal Research Chinese Academy of SciencesShenyangChina

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