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

doi:10.1002/srin.201000132

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

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

24 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 language	English
Pages (from-to)	242-248
Number of pages	7
Journal	Steel Research International
Volume	82
Issue number	3
DOIs	https://doi.org/10.1002/srin.201000132
Publication status	Published - 2011 Mar

All Science Journal Classification (ASJC) codes

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

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10.1002/srin.201000132

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

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.",

author = "Cai, {Ming Hui} and Hua Ding and Tang, {Zheng You} and Lee, {Hua Ying} and Lee, {Young Kook}",

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T1 - Strain hardening behavior of high performance FBDP, TRIP and TWIP steels

AU - Cai, Ming Hui

AU - Ding, Hua

AU - Tang, Zheng You

AU - Lee, Hua Ying

AU - Lee, Young Kook

PY - 2011/3

Y1 - 2011/3

N2 - 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.

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

Abstract

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