Effect of DC current on the creep deformation of tin

Rong Chen, Fuqian Yang

Research output: Contribution to journalArticlepeer-review

23 Scopus citations

Abstract

Impression creep testing of tin was performed in the temperature range of 343 K to 398 K and under a punching stress of 12 MPa to 55 MPa. During the impression test at constant load, a direct electric current in the range of 0 A to 6 A flowed through the punch into the sample, introducing an electromechanical interaction. Steady-state creep was observed under the simultaneous action of the electric current and mechanical stress. The steady-state impression velocity increased with increasing temperature, punching stress, and electric current. A hyperbolic sine relation was used to describe the stress dependence of the steady-state impression velocity for impression creep of tin. The apparent activation energy decreased with increasing electric current.

Original languageEnglish
Pages (from-to)2611-2617
Number of pages7
JournalJournal of Electronic Materials
Volume39
Issue number12
DOIs
StatePublished - Dec 2010

Bibliographical note

Funding Information:
This work is supported by NSF Grant CMMI-0800018 and KSEF Grant KSEF-148-502-06-180.

Keywords

  • Creep
  • Joule heating

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering
  • Materials Chemistry

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