Effect of nitrogen on the critical strain for dynamic strain aging in high-manganese twinning-induced plasticity steel

The effect of nitrogen on the dynamic strain again behavior of a Fe–18% Mn–0.6% C twinning-induced plasticity steel was investigated by means of in situ infrared thermography during tensile testing. The addition of nitrogen affected the initiation of the Portevin–Le Châtelier bands and the character...

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Bibliographic Details
Published inScripta materialia Vol. 65; no. 6; pp. 528 - 531
Main Authors Lee, Sangwon, Kim, Jinkyung, Lee, Seok-Jae, De Cooman, Bruno C.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.09.2011
Subjects
Bands
Dynamic strain aging
Dynamic strain aging (DSA)
Infrared
Nitrogen effect
Plasticity
Portevin–Le Châtelier (PLC) band
Steels
Strain
Stress strain curves
Stress-strain relationships
Twinning-induced plasticity (TWIP)
Portevin–Le Châtelier (PLC) band
Twinning-induced plasticity (TWIP)
Nitrogen effect
Dynamic strain aging (DSA)
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Summary:The effect of nitrogen on the dynamic strain again behavior of a Fe–18% Mn–0.6% C twinning-induced plasticity steel was investigated by means of in situ infrared thermography during tensile testing. The addition of nitrogen affected the initiation of the Portevin–Le Châtelier bands and the characteristic shape of the serrations on the stress–strain curve. Also, nitrogen additions resulted in an increase in the critical strain for dynamic strain aging.
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ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2011.06.017