The kinetics of formation and decomposition of austenite in relation to carbide morphology

Henrique Duarte Alvarenga; Nele Van Steenberge; Jilt Sietsma; Herman Terryn

doi:10.1007/s11661-016-3874-z

The kinetics of formation and decomposition of austenite in relation to carbide morphology

Henrique Duarte Alvarenga^*, Nele Van Steenberge, Jilt Sietsma, Herman Terryn

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

3 Citations (Scopus)

Abstract

The effect of the carbide morphology on the kinetics of austenite formation and its decomposition was investigated by a combination of measurements of austenite fraction by dilatometry and metallography. These measurements show that coarse carbide morphology is generated by fast cooling through the early stages of eutectoid transformation, enabling fast precipitation of pro-eutectoid ferrite, followed by slow cooling during the final stages of transformation, during the precipitation of carbides. Additionally, a strong influence of the morphology of carbides on the kinetics of austenite formation is observed. The presence of coarse carbides can determine the rate of austenite formation during intercritical annealing as a result of its slow dissolution kinetics.

Original language	English
Pages (from-to)	828-840
Journal	Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science
Volume	48
Issue number	2
DOIs	https://doi.org/10.1007/s11661-016-3874-z
Publication status	Published - 2017

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title = "The kinetics of formation and decomposition of austenite in relation to carbide morphology",

abstract = "The effect of the carbide morphology on the kinetics of austenite formation and its decomposition was investigated by a combination of measurements of austenite fraction by dilatometry and metallography. These measurements show that coarse carbide morphology is generated by fast cooling through the early stages of eutectoid transformation, enabling fast precipitation of pro-eutectoid ferrite, followed by slow cooling during the final stages of transformation, during the precipitation of carbides. Additionally, a strong influence of the morphology of carbides on the kinetics of austenite formation is observed. The presence of coarse carbides can determine the rate of austenite formation during intercritical annealing as a result of its slow dissolution kinetics.",

author = "Alvarenga, {Henrique Duarte} and {Van Steenberge}, Nele and Jilt Sietsma and Herman Terryn",

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The kinetics of formation and decomposition of austenite in relation to carbide morphology. / Alvarenga, Henrique Duarte; Van Steenberge, Nele; Sietsma, Jilt et al.
In: Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science, Vol. 48, No. 2, 2017, p. 828-840.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - The kinetics of formation and decomposition of austenite in relation to carbide morphology

AU - Alvarenga, Henrique Duarte

AU - Van Steenberge, Nele

AU - Sietsma, Jilt

AU - Terryn, Herman

PY - 2017

Y1 - 2017

N2 - The effect of the carbide morphology on the kinetics of austenite formation and its decomposition was investigated by a combination of measurements of austenite fraction by dilatometry and metallography. These measurements show that coarse carbide morphology is generated by fast cooling through the early stages of eutectoid transformation, enabling fast precipitation of pro-eutectoid ferrite, followed by slow cooling during the final stages of transformation, during the precipitation of carbides. Additionally, a strong influence of the morphology of carbides on the kinetics of austenite formation is observed. The presence of coarse carbides can determine the rate of austenite formation during intercritical annealing as a result of its slow dissolution kinetics.

AB - The effect of the carbide morphology on the kinetics of austenite formation and its decomposition was investigated by a combination of measurements of austenite fraction by dilatometry and metallography. These measurements show that coarse carbide morphology is generated by fast cooling through the early stages of eutectoid transformation, enabling fast precipitation of pro-eutectoid ferrite, followed by slow cooling during the final stages of transformation, during the precipitation of carbides. Additionally, a strong influence of the morphology of carbides on the kinetics of austenite formation is observed. The presence of coarse carbides can determine the rate of austenite formation during intercritical annealing as a result of its slow dissolution kinetics.

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JO - Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A - Physical Metallurgy and Materials Science

IS - 2

ER -

The kinetics of formation and decomposition of austenite in relation to carbide morphology

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