Effect of electric current density on the mechanical property of advanced high strength steels under quasi-static tensile loads

Min Sung Kim, Nguyen Thai Vinh, Hyeong Ho Yu, Sung Tae Hong, Hyun Woo Lee, Moon Jo Kim, Heung Nam Han, John Timothy Roth

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The effect of a single pulse of electric current on the mechanical property of advanced high strength steels (AHSS) under quasi-static tensile loads is investigated by experiments. During a typical quasi-static tensile test, electric current is applied to a specimen for a short duration (less than 1 second) while the specimen is in plastic region. The stress-strain curve shows that the flow stress almost instantly decreases significantly (stress-drop) when the electric current is applied, while the tensile strength from the following stress-strain curve after the short pulse of electric current is not changed much. The experimental result suggests that the stress-drop at the moment of a short pulse of electric current can be effectively used to reduce the springback of material, as successfully demonstrated in the present study.

Original languageEnglish (US)
Pages (from-to)1207-1213
Number of pages7
JournalInternational Journal of Precision Engineering and Manufacturing
Volume15
Issue number6
DOIs
StatePublished - Jan 1 2014

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Electric currents
High strength steel
Current density
Mechanical properties
Stress-strain curves
Plastic flow
Tensile strength
Plastics
Experiments

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

Cite this

Kim, Min Sung ; Vinh, Nguyen Thai ; Yu, Hyeong Ho ; Hong, Sung Tae ; Lee, Hyun Woo ; Kim, Moon Jo ; Han, Heung Nam ; Roth, John Timothy. / Effect of electric current density on the mechanical property of advanced high strength steels under quasi-static tensile loads. In: International Journal of Precision Engineering and Manufacturing. 2014 ; Vol. 15, No. 6. pp. 1207-1213.
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Effect of electric current density on the mechanical property of advanced high strength steels under quasi-static tensile loads. / Kim, Min Sung; Vinh, Nguyen Thai; Yu, Hyeong Ho; Hong, Sung Tae; Lee, Hyun Woo; Kim, Moon Jo; Han, Heung Nam; Roth, John Timothy.

In: International Journal of Precision Engineering and Manufacturing, Vol. 15, No. 6, 01.01.2014, p. 1207-1213.

Research output: Contribution to journalArticle

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