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Article: Carbon-Dislocation Interaction-Induced Abnormal Strain-Rate Sensitivity in Twinning-Induced Plasticity Steels

TitleCarbon-Dislocation Interaction-Induced Abnormal Strain-Rate Sensitivity in Twinning-Induced Plasticity Steels
Authors
Li, YZHuang, MX
KeywordsCritical strains
Deformation mechanism
Dislocation interaction
Nucleation mechanism
Quasi-static strain rates
Issue Date2019
PublisherSpringer New York LLC. The Journal's web site is located at http://www.springer.com/materials/journal/11661
Citation
Metallurgical and Materials Transactions A, 2019, v. 50, p. 2570-2575 How to Cite?
DOI: http://dx.doi.org/10.1007/s11661-019-05179-z
AbstractThe existence of an abnormal transition in the strain-rate sensitivity of yield stress occurring at the strain rate ∼0.05 s–1 of a C-added twinning-induced plasticity (TWIP) steel is demonstrated for the first time. The theoretical model in this work shows that the yielding of C-added TWIP steels is governed by the kink-pair nucleation mechanism overcoming the pinning of C solutes at a critical strain rate. However, the yielding at quasi-static strain rates (ϵ˙<0.05 s–1) is controlled by the C solute dragging mechanism. The present model highlights the fundamental role of C-dislocation interaction in the deformation mechanism of TWIP steels.
Persistent Identifierhttp://hdl.handle.net/10722/290197
ISSN
1073-5623
2023 Impact Factor: 2.2
2023 SCImago Journal Rankings: 0.761
ISI Accession Number ID
WOS:000466497000002

 

DC FieldValueLanguage
dc.contributor.authorLi, YZ-
dc.contributor.authorHuang, MX-
dc.date.accessioned2020-10-22T08:23:24Z-
dc.date.available2020-10-22T08:23:24Z-
dc.date.issued2019-
dc.identifier.citationMetallurgical and Materials Transactions A, 2019, v. 50, p. 2570-2575-
dc.identifier.issn1073-5623-
dc.identifier.urihttp://hdl.handle.net/10722/290197-
dc.description.abstractThe existence of an abnormal transition in the strain-rate sensitivity of yield stress occurring at the strain rate ∼0.05 s–1 of a C-added twinning-induced plasticity (TWIP) steel is demonstrated for the first time. The theoretical model in this work shows that the yielding of C-added TWIP steels is governed by the kink-pair nucleation mechanism overcoming the pinning of C solutes at a critical strain rate. However, the yielding at quasi-static strain rates (ϵ˙<0.05 s–1) is controlled by the C solute dragging mechanism. The present model highlights the fundamental role of C-dislocation interaction in the deformation mechanism of TWIP steels.-
dc.languageeng-
dc.publisherSpringer New York LLC. The Journal's web site is located at http://www.springer.com/materials/journal/11661-
dc.relation.ispartofMetallurgical and Materials Transactions A-
dc.rightsThis is a post-peer-review, pre-copyedit version of an article published in [insert journal title]. The final authenticated version is available online at: https://doi.org/[insert DOI]-
dc.subjectCritical strains-
dc.subjectDeformation mechanism-
dc.subjectDislocation interaction-
dc.subjectNucleation mechanism-
dc.subjectQuasi-static strain rates-
dc.titleCarbon-Dislocation Interaction-Induced Abnormal Strain-Rate Sensitivity in Twinning-Induced Plasticity Steels-
dc.typeArticle-
dc.identifier.emailLi, YZ: yzli2@hku.hk-
dc.identifier.emailHuang, MX: mxhuang@hku.hk-
dc.identifier.authorityHuang, MX=rp01418-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s11661-019-05179-z-
dc.identifier.scopuseid_2-s2.0-85071729334-
dc.identifier.hkuros317287-
dc.identifier.volume50-
dc.identifier.spage2570-
dc.identifier.epage2575-
dc.identifier.isiWOS:000466497000002-
dc.publisher.placeUnited States-
dc.identifier.issnl1073-5623-

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