Probing the effect of intragranular premature ...
Document type :
Article dans une revue scientifique: Article original
Permalink :
Title :
Probing the effect of intragranular premature κ-carbide on incipient plasticity behavior in austenite-based Fe-Mn-Al-(Cr)-C steels
Author(s) :
Zhang, Jianlei [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Shanghai University
Liu, Yuxiang [Auteur]
Shanghai University
Hu, Conghui [Auteur]
Shanghai University
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Montagne, Alex [Auteur]
Mechanics surfaces and materials processing [MSMP]
Ji, Gang [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Song, Changjiang [Auteur]
Shanghai University
Zhai, Qijie [Auteur]
Shanghai University
Zhang, Jianlei [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Shanghai University
Liu, Yuxiang [Auteur]
Shanghai University
Hu, Conghui [Auteur]
Shanghai University
Addad, Ahmed [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Montagne, Alex [Auteur]
Mechanics surfaces and materials processing [MSMP]
Ji, Gang [Auteur]
Unité Matériaux et Transformations (UMET) - UMR 8207
Song, Changjiang [Auteur]
Shanghai University
Zhai, Qijie [Auteur]
Shanghai University
Zhang, Jianlei [Auteur]
Journal title :
Materials Research Letters
Abbreviated title :
Materials Research Letters
Volume number :
10
Pages :
141-148
Publisher :
Informa UK Limited
Publication date :
2022-01-31
ISSN :
2166-3831
English keyword(s) :
Fe-Mn-Al-C low-density steel
premature κ-carbide
dislocation nucleation
nanoindentation
charge transfer
premature κ-carbide
dislocation nucleation
nanoindentation
charge transfer
HAL domain(s) :
Chimie/Matériaux
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
English abstract : [en]
The effect of nanoscale intragranular premature κ-carbide precipitates, having an ordered structure but without chemical partitioning, on the incipient plasticity behavior of austenite in Fe-Mn-Al-(Cr)-C low-density steels ...
Show more >The effect of nanoscale intragranular premature κ-carbide precipitates, having an ordered structure but without chemical partitioning, on the incipient plasticity behavior of austenite in Fe-Mn-Al-(Cr)-C low-density steels was investigated by nanoindentation. We found that the incipient plasticity was dominated by a heterogeneous dislocation nucleation mechanism via atom-vacancy exchange. Although the content of κ-carbide decreased with Cr addition, its negligible effect on incipient plasticity strength was witnessed by the slightly increased shear stress for dislocation nucleation. Comparatively, the increased interstitial C atoms with Cr content in austenite enhanced lattice cohesions which impeded the nucleation events by increasing the requisite shear stress.Show less >
Show more >The effect of nanoscale intragranular premature κ-carbide precipitates, having an ordered structure but without chemical partitioning, on the incipient plasticity behavior of austenite in Fe-Mn-Al-(Cr)-C low-density steels was investigated by nanoindentation. We found that the incipient plasticity was dominated by a heterogeneous dislocation nucleation mechanism via atom-vacancy exchange. Although the content of κ-carbide decreased with Cr addition, its negligible effect on incipient plasticity strength was witnessed by the slightly increased shear stress for dislocation nucleation. Comparatively, the increased interstitial C atoms with Cr content in austenite enhanced lattice cohesions which impeded the nucleation events by increasing the requisite shear stress.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
INRA
ENSCL
CNRS
INRA
ENSCL
Collections :
Research team(s) :
Métallurgie Physique et Génie des Matériaux
Submission date :
2022-01-31T11:10:43Z
2022-01-31T11:33:45Z
2022-01-31T11:33:45Z
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