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Atomistic study of nano-sized kappa-carbide formation and, its interaction with dislocations in a cast Si added FeMnAlC lightweight steel
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Title
Atomistic study of nano-sized kappa-carbide formation and, its interaction with dislocations in a cast Si added FeMnAlC lightweight steel
Issued Date
2016-09
Citation
Materials Science and Engineering a: Structural Materials Properties Microstructure and Processing, v.673, pp.108 - 113
Type
Article
Author Keywords
Tomography ; Lightweight steel ; Dislocations ; Plasticity ; Precipitation ; Shear bands
Keywords
ALLOY ; Atomistic Studies ; BEHAVIOR ; C AUSTENITIC STEELS ; Carbide Formation ; Carbides ; Carbon ; DEFORMATION ; Dislocations ; Dislocations (Crystals) ; ENERGY ; HIGH-STRENGTH ; Light-Weight Steels ; Lightweight Steel ; LOW-DENSITY ; Manganese ; MECHANICAL-PROPERTIES ; Nano Sized ; Plasticity ; Precipitation ; Precipitation (Chemical) ; Shear Bands ; Si Addition ; Silicon ; Tomography
ISSN
0921-5093
Abstract

The Si addition facilitates the partitioning of carbon to κ-carbide during aging in a Fe–30Mn–9Al–0.9C–0.5Mo lightweight steel, i.e. from (Fe,Mn)3AlC0.38 to (Fe,Mn)3AlC0.51. Reduced plasticity was found in 1% Si-added specimen where one directional shearing of κ-carbide was prominent. Novel insights into dislocation-κ-carbide interactions are discussed in terms of atomistic shear. © 2016 Elsevier B.V.

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URI
http://hdl.handle.net/20.500.11750/2195
DOI
10.1016/j.msea.2016.07.029
Publisher
Elsevier
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