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Experimental Techniques

, Volume 43, Issue 1, pp 1–6 | Cite as

Effect of Deformation Induced Microstructure Faults on the Elastic Mechanical Parameters of Micro-Scale Copper

  • S.F. Wang
  • H.C. Wang
  • W. Liu
  • Y.H. Feng
  • B. Chen
  • J. Dong
  • H.Y. Jia
  • Y. HuanEmail author
Article
  • 23 Downloads

Abstract

The elastic mechanical parameters of initial and pre-twisted copper wires were investigated with the aid of a self-developed micro-torsion tester. It was found that the apparent elastic shear modulus and the apparent Young tensile modulus of the copper wires decrease by 13.3 and 8.4% after pre-twist deformation, respectively. In addition, the indentation modulus also decreases as the deformation is increased. When the deformation is more than 30%, the indentation modulus of pre-twisted copper wires is smaller than that of initial copper wires. Microstructural analyses show that the elastic modulus decreases with the proportion of faults.

Keywords

Micro-scale Apparent elastic shear modulus Apparent Young tensile modulus Nanoindentation 

Notes

Acknowledgments

This work is supported by the National Natural Science Foundation of China (Grant Nos. 11372323), and CAS Key Technology Talent Program and the project of function development on scientific instruments of Chinese Academy of Sciences.

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Copyright information

© The Society for Experimental Mechanics, Inc 2018

Authors and Affiliations

  • S.F. Wang
    • 1
    • 2
  • H.C. Wang
    • 3
  • W. Liu
    • 1
    • 2
  • Y.H. Feng
    • 1
  • B. Chen
    • 1
    • 2
  • J. Dong
    • 1
    • 2
  • H.Y. Jia
    • 1
    • 2
  • Y. Huan
    • 1
    • 2
    Email author
  1. 1.State Key Laboratory of Nonlinear Mechanics (LNM), Institute of MechanicsChinese Academy of SciencesBeijingChina
  2. 2.School of Engineering ScienceUniversity of Chinese Academy of SciencesBeijingChina
  3. 3.Institute of MechanicsChinese Academy of SciencesBeijingChina

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