On the Schmid's Law for the electric current-induced deformation: An in situ EBSD study

Yu chen Liu, Shih kang Lin, Shang Jui Chiu

Research output: Contribution to journalArticle

Abstract

For metals and alloys, electric currents may induce atomic diffusion and morphological changes, known as the electromigration (EM) effect. Here we report the first direct application of conventional solid mechanics’ theory to predict the electric current-induced deformations based on the in situ electron backscattered diffraction and synchrotron radiation-based X-ray diffraction analyses of Cu strips under current stressing. At a given current density, the electric current-induced elastic, slip, or slip accompanying with twinning deformation in Cu strips was revealed. The Schmid's Law is well elucidating the occurrence of the electric current-induced plastic deformations, namely the slip and twinning ones. The study unveils that the electric current-induced strain and deformation can be described in the same context as for the conventional solid mechanics.

Original languageEnglish
Article number105295
JournalInternational Journal of Mechanical Sciences
Volume168
DOIs
Publication statusPublished - 2020 Feb 15

Fingerprint

Electric currents
electric current
solid mechanics
slip
Twinning
twinning
strip
Mechanics
diffraction radiation
Electromigration
electromigration
Synchrotron radiation
Electron diffraction
plastic deformation
Plastic deformation
synchrotron radiation
Current density
electron diffraction
Metals
occurrences

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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abstract = "For metals and alloys, electric currents may induce atomic diffusion and morphological changes, known as the electromigration (EM) effect. Here we report the first direct application of conventional solid mechanics’ theory to predict the electric current-induced deformations based on the in situ electron backscattered diffraction and synchrotron radiation-based X-ray diffraction analyses of Cu strips under current stressing. At a given current density, the electric current-induced elastic, slip, or slip accompanying with twinning deformation in Cu strips was revealed. The Schmid's Law is well elucidating the occurrence of the electric current-induced plastic deformations, namely the slip and twinning ones. The study unveils that the electric current-induced strain and deformation can be described in the same context as for the conventional solid mechanics.",
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On the Schmid's Law for the electric current-induced deformation : An in situ EBSD study. / Liu, Yu chen; Lin, Shih kang; Chiu, Shang Jui.

In: International Journal of Mechanical Sciences, Vol. 168, 105295, 15.02.2020.

Research output: Contribution to journalArticle

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