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Strength of Materials

, Volume 51, Issue 1, pp 113–121 | Cite as

Construction and Verification of the Constitutive Model of Pure Copper Deformation at Elevated Temperatures

  • S. H. HuangEmail author
  • Y. Wu
  • Z. D. Zhao
  • X. S. Xia
Article
  • 18 Downloads

The deformation behavior of pure copper was studied in hot compression tests in the temperature range of 773–1173 K and strain rate interval of 0.001–1.0 s–1, the corresponding flow stress curves were plotted. The new method to calculate critical and saturation stresses was devised, quantitative analysis of strain hardening and dynamic softening was presented, a three-stage constitutive model was constructed to predict the flow stress of pure copper. As predicted and measured flow stress comparison indicate, the physical constitutive model can accurately characterize hot deformation of pure copper. With dynamic recovery and/or recrystallization. Numerical simulation of an upsetting process is carried out by implementing the constitutive model into commercial software. This model can be put to practical use and be quite promising for improving efficiency of a hot forging process for pure copper components.

Keywords

pure copper constitutive model flow stress numerical simulation dynamic recrystallization 

Notes

Acknowledgments

This research is funded by Chongqing Research Program of Basic Research and Frontier Technology (No. CSTC2015JCYJBX0115).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • S. H. Huang
    • 1
    • 2
    Email author
  • Y. Wu
    • 1
  • Z. D. Zhao
    • 1
    • 2
  • X. S. Xia
    • 1
  1. 1.Southwest Technology and Engineering Research InstituteChongqingChina
  2. 2.Precision Forming Integrated Manufacturing Technology of Collaborative Innovation CenterChongqingChina

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