Solute drag modeling for ferrite growth kinetics during precipitation experiments

Benrabah, Imed-Eddine; Landeghem, H.P. Van; Bonnet, Frédéric; Denand, Benoît; Géandier, Guillaume; Deschamps, A.

doi:10.1016/j.actamat.2021.117364

Cited by 6 publications

(21 citation statements)

References 47 publications

(127 reference statements)

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“…Recently, the three-jump SD model, originally proposed by Zurob et al [26], was adapted to account for the dierent interactions between the existing elements at the interface, and to take into account the high amount of carbon segregated at the transformation interface, which was measured experimentally in several studies. The model predictions showed good agreement with ferrite precipitation kinetics in several Fe-C-X ternary alloys [28]. In this new version of the SD model, only the Fe-X interaction parameter at the interface was used as a tting parameter.…”

mentioning

confidence: 73%

“…Three models were compared to experimental measured ferrite growth kinetics : LE, PE and a new version of the `three-jump solute drag (SD)' model [28]. Local equilibrium (LE) and para-equilibrium (PE) models were carried using TCFE9 and MOB2 databases of the ThermoCalc software [55].…”

Section: Phase Transformation Modelingmentioning

confidence: 99%

“…Solute drag calculations were carried using a modied version of the threejump model proposed by Zurob et al [26]. The details of this modied model are described in [28]. The 'three jump' model assumes that during the austenite-to-ferrite transformation, the substitutional elements diuse through a thick discrete interface using three jumps characterized by their diusion coecients.…”

Section: Phase Transformation Modelingmentioning

confidence: 99%

“…For simplicity, this parameter will be referred to as the Fe-X interaction parameter. Note that this parameter can be related to the binding energy as explained in [28]. Here both the interaction parameter Fe-X and its corresponding binding energy will be indicated.…”

Section: Phase Transformation Modelingmentioning

confidence: 99%

“…Assessing the dependency on composition and temperature of these interaction parameters requires laborious experimental work. Such investigations were conducted by Qiu et al [29,30] and Zurob et al [26] using decarburization experiments for dierent Fe-C-X systems (X :Mn, Ni, Cr, Mo, Si and Co), and lately using precipitation experiments [28] for dierent Fe-C-X (X : Ni, Mn, Cr and Mo) alloys. Results showed that experimental data for several compositions and temperatures can be described with constant interaction parameters with the three-jump SD model.…”

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confidence: 99%

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High-throughput investigation of ferrite growth kinetics in graded ternary Fe-C-X alloys

et al. 2022

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mentioning

confidence: 73%

Section: Phase Transformation Modelingmentioning

confidence: 99%

Section: Phase Transformation Modelingmentioning

confidence: 99%

Section: Phase Transformation Modelingmentioning

confidence: 99%

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confidence: 99%

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High-throughput investigation of ferrite growth kinetics in graded ternary Fe-C-X alloys

et al. 2022

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Pearlite Growth Kinetics in Fe-C-Mn Eutectoid Steels: Quantitative Evaluation of Energy Dissipation at Pearlite Growth Front Via Experimental Approaches

Zhang,

Umeda,

Morooka

et al. 2024

Metall Mater Trans A

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Essential understanding of the pearlite growth kinetics is of great significance to predict the lamellar spacing and the resultant mechanical properties of pearlitic steels. In this study, a series of eutectoid steels with Mn addition up to 2 mass pct were isothermally transformed at various temperatures from 873 K to 973 K to clarify the pearlite growth kinetics and the underlying thermodynamics at its growth front. The microscopic observation indicates the acceleration in pearlite growth rate and refinement in lamellar spacing by decreasing the transformation temperature or the amount of Mn addition. After analyzing the solute distribution at pearlite growth front via three-dimensional atom probe, no macroscopic Mn partitioning across pearlite/austenite interface is detected, whereas Mn segregation is only observed at ferrite/austenite interface. Furthermore, in-situ neutron diffraction measurements performed at elevated temperatures reveal that the magnitude of elastic strain generated during pearlite transformation is very small. Based on the thermodynamic model, these experimental results are used to estimate the contribution of various factors to the total energy dissipation. Compared with the Mn-free alloy, the retardation effect of Mn addition on pearlite growth kinetics, which is partly due to the reduced driving force for pearlite growth, can be well explained by further considering the solute drag effect of Mn.

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Improving toughness and strain-hardening of a silicon-enriched ferritic/martensitic (F/M) steel via an austenite isothermal hot-rolling (AIHR) process

Zhang

Ren

Zhang

et al. 2023

Materials Science and Engineering: A

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Solute drag modeling for ferrite growth kinetics during precipitation experiments

Cited by 6 publications

References 47 publications

High-throughput investigation of ferrite growth kinetics in graded ternary Fe-C-X alloys

High-throughput investigation of ferrite growth kinetics in graded ternary Fe-C-X alloys

Pearlite Growth Kinetics in Fe-C-Mn Eutectoid Steels: Quantitative Evaluation of Energy Dissipation at Pearlite Growth Front Via Experimental Approaches

Improving toughness and strain-hardening of a silicon-enriched ferritic/martensitic (F/M) steel via an austenite isothermal hot-rolling (AIHR) process

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