A modified pearlite microstructure to overcome the strength-plasticity trade-off of heavily drawn pearlitic wire

Zhou, Lichu; Fang, Feng; Kumagai, Masayoshi; Pickering, Ed; Zhang, Xiaodan

doi:10.1016/j.scriptamat.2021.114236

Cited by 12 publications

(4 citation statements)

References 48 publications

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“…On the other hand, the building of internal stresses during plastic deformation is responsible for the distinct response of drawn wires to different loading conditions, something that has been repeatedly reported elsewhere [65,66]. In the following section, the macroscopic predictions of the model will be compared with experimental strainstress curves under different loading conditions.…”

Section: Resultsmentioning

confidence: 74%

A Microstructure-Based Constitutive Model for Eutectoid Steels

Rodríguez-Páez,

Dorronsoro,

Martinez-Esnaola

et al. 2023

Preprint

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Section: Resultsmentioning

confidence: 74%

A Microstructure-Based Constitutive Model for Eutectoid Steels

Rodríguez-Páez,

Dorronsoro,

Martinez-Esnaola

et al. 2023

Preprint

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“…Meanwhile, the temperature reduction can also contribute to the increase of twins and dislocations due to the reduction of SFE, which may result in the stress concentration at deformation twin boundaries and the eventual premature fracture [16]. However, the effects of carbon content on the mechanical properties, deformation behavior and failure mechanisms of high manganese steels needs further detailed and systematic investigations, which may include the quantification of microstructural parameters [17][18][19] and the heterogeneous deformation [20] using advanced postmortem investigations [21][22][23] as well as in-situ electron microscopy mechanical testing [24]. High manganese austenitic steel possesses the excellent mechanical properties, which strongly depend on the stacking fault energy (SFE) [25].…”

Section: Resultsmentioning

confidence: 99%

Tailoring mechanical properties of Fe-32Mn-0.6C steel via deformation, dynamic recovery and recrystallization

Xiong,

Liu,

Kong

et al. 2023

J. Phys.: Conf. Ser.

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The microstructures and mechanical properties of Fe-32Mn-0.6C steel after deformation, dynamic recovery and recrystallization were investigated. Dynamic recovery occurred during rolling at 800°C, and fined subgrains formed at deformation introduced lamellar boundaries. During tensile deformation, a large amount of deformation twins is activated, leading to a high work-hardening. Compared to the cold-rolled and coarse-grained recrystallized samples, the 800°C rolled sample shows an improved combination of strength and ductility at both room temperature (RT) and liquid nitrogen temperature (LNT). Specifically, the yield strength and uniform elongation are 702 MPa and 61%, respectively, at RT and are 1013 MPa and 48%, respectively, at LNT.

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“…The GBF zone, which is also known as optically dark area (ODA) 7,33 and fine granular areas (FGA), 46 has been normally found in the very high cycle fatigue regime of high strength steels beyond 10 7 cycles 47 and with a much lower stress amplitude (500-900 MPa) than those in the present study. The detailed microstructural evolution for the GBF formation and propagation during the fatigue process will be ex situ investigated by advanced transmission electron microscopy 22,48,49 and/or in situ investigated by mechanical testing in a transmission electron microscope, 50,51 which includes not only the static nanostructures in the GBF zone, but also the dynamic process of dislocation-boundary interaction. 52…”

Section: Rcf Fatigue Life Improvement Resulted From Inclusion Refinementmentioning

confidence: 99%

Improve fatigue and mechanical properties of high carbon bearing steel by a new double vacuum melting route

Shi

Wang

Gao

et al. 2022

Fatigue Fract Eng Mat Struct

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A new double vacuum melting route (conventional second refining + vacuum arc refining [CSR + VAR]) with 33% lower production cost than the traditional VIM + VAR route has been tried. Compared with the CSR route, the CSR + VAR route reduces the average inclusion size from 27.1 ± 12.3 μm to 13.7 ± 2.4 μm, and the CSR + VAR steel processes a 13.1% higher rotatory bending fatigue (RBF) fatigue strength (σ À1 ) and a 3-timeslonger RCF L 10 life.The crescent-shaped granular bright facet (GBF) zone, normally found in high-strength steels' very high cycle fatigue regimes beyond 10 7 cycles normally under a much lower stress amplitude, appears around inner inclusions on the CSR + VAR steel RBF fracture surfaces in high cycle fatigue regimes beyond 3 Â 10 5 cycles. The development of GBF zones is estimated to account for 79%-90% of the RBF fatigue life. The average crack propagation rate (da/dN) for GBF zones varies from 1.3 Â 10 À12 m/cycle to 24 Â 10 À12 m/cycle and increases with the stress amplitude.

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A modified pearlite microstructure to overcome the strength-plasticity trade-off of heavily drawn pearlitic wire

Cited by 12 publications

References 48 publications

A Microstructure-Based Constitutive Model for Eutectoid Steels

A Microstructure-Based Constitutive Model for Eutectoid Steels

Tailoring mechanical properties of Fe-32Mn-0.6C steel via deformation, dynamic recovery and recrystallization

Improve fatigue and mechanical properties of high carbon bearing steel by a new double vacuum melting route

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