Strain hardening behavior of high performance FBDP, TRIP and TWIP steels

Ming Hui Cai, Hua Ding, Zheng You Tang, Hua Ying Lee, Young-Kook Lee

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Based on n-value differential equation and microstructural observation, strain hardening behaviors of FBDP, TRIP, and TWIP steels during uniaxial tension were investigated. TRIP steel exhibits both superior strength and ductility than FBDP steel, and TWIP steel displays much higher total and uniform elongations in comparison to FBDP and TRIP steels. The instantaneous n values of FBDP and TRIP steels increase at small strains, reach a maximum value, smoothly decrease at higher strains, and then rapidly drop up to the specimen rupture. The strain hardening of TRIP steel persists at higher strains where that of FBDP steel begins to diminish. TWIP steel exhibits gradually increased instantaneous n values over the whole uniform plastic deformation, implying that TWIP steel shows a much larger strain hardening capability than FBDP and TRIP steels.

Original languageEnglish
Pages (from-to)242-248
Number of pages7
JournalSteel Research International
Volume82
Issue number3
DOIs
Publication statusPublished - 2011 Mar 1

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strain hardening
Steel
Strain hardening
steels
ductility
elongation
plastic deformation
Ductility
Elongation
Plastic deformation
Differential equations
differential equations

All Science Journal Classification (ASJC) codes

  • Materials Chemistry
  • Metals and Alloys
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry

Cite this

Cai, Ming Hui ; Ding, Hua ; Tang, Zheng You ; Lee, Hua Ying ; Lee, Young-Kook. / Strain hardening behavior of high performance FBDP, TRIP and TWIP steels. In: Steel Research International. 2011 ; Vol. 82, No. 3. pp. 242-248.
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Strain hardening behavior of high performance FBDP, TRIP and TWIP steels. / Cai, Ming Hui; Ding, Hua; Tang, Zheng You; Lee, Hua Ying; Lee, Young-Kook.

In: Steel Research International, Vol. 82, No. 3, 01.03.2011, p. 242-248.

Research output: Contribution to journalArticle

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AB - Based on n-value differential equation and microstructural observation, strain hardening behaviors of FBDP, TRIP, and TWIP steels during uniaxial tension were investigated. TRIP steel exhibits both superior strength and ductility than FBDP steel, and TWIP steel displays much higher total and uniform elongations in comparison to FBDP and TRIP steels. The instantaneous n values of FBDP and TRIP steels increase at small strains, reach a maximum value, smoothly decrease at higher strains, and then rapidly drop up to the specimen rupture. The strain hardening of TRIP steel persists at higher strains where that of FBDP steel begins to diminish. TWIP steel exhibits gradually increased instantaneous n values over the whole uniform plastic deformation, implying that TWIP steel shows a much larger strain hardening capability than FBDP and TRIP steels.

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