‘Flash’ Annealing in a Cold-Rolled Low Carbon Steel Alloyed With Cr, Mn, Mo, and Nb: Part I - Continuous Phase Transformations

Felipe Manuel Castro Cerda; Florian Vercruysse; Constantinos Goulas; Bernd Schulz; Roumen H. Petrov

doi:10.1002/srin.201800098

‘Flash’ Annealing in a Cold-Rolled Low Carbon Steel Alloyed With Cr, Mn, Mo, and Nb: Part I - Continuous Phase Transformations

Felipe Manuel Castro Cerda^*, Florian Vercruysse, Constantinos Goulas, Bernd Schulz, Roumen H. Petrov

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

The aim of the present work is to study the microstructure evolution of a cold-rolled low carbon steel alloyed with Cr, Mn, Mo, and Nb during continuous heating. The formation of austenite and its further transformation is examined by means of peak annealing experiments at three different heating rates, followed by quenching. The effect of carbide-forming alloying elements in the kinetics of austenite formation and decomposition is discussed with the aim of DICTRA calculations. Electron Probe Micro Analysis allows the detection of small compositional fluctuations within the microstructure, which are responsible for local changes in the mechanism of austenite formation. It is experimentally demonstrated that the temperature dependence of the austenite fraction is relatively insensitive to the heating rate. It is suggested that carbide-forming alloying elements slow down the kinetics of austenite formation.

Original language	English
Article number	1800098
Number of pages	11
Journal	Steel research international
Volume	90
Issue number	1
Early online date	3 Apr 2018
DOIs	https://doi.org/10.1002/srin.201800098
Publication status	Published - Jan 2019
Externally published	Yes

Keywords

Austenite
Massive
Segregation
Steel
Ultrafast heating

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10.1002/srin.201800098

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title = "{\textquoteleft}Flash{\textquoteright} Annealing in a Cold-Rolled Low Carbon Steel Alloyed With Cr, Mn, Mo, and Nb: Part I - Continuous Phase Transformations",

abstract = "The aim of the present work is to study the microstructure evolution of a cold-rolled low carbon steel alloyed with Cr, Mn, Mo, and Nb during continuous heating. The formation of austenite and its further transformation is examined by means of peak annealing experiments at three different heating rates, followed by quenching. The effect of carbide-forming alloying elements in the kinetics of austenite formation and decomposition is discussed with the aim of DICTRA calculations. Electron Probe Micro Analysis allows the detection of small compositional fluctuations within the microstructure, which are responsible for local changes in the mechanism of austenite formation. It is experimentally demonstrated that the temperature dependence of the austenite fraction is relatively insensitive to the heating rate. It is suggested that carbide-forming alloying elements slow down the kinetics of austenite formation.",

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author = "{Castro Cerda}, {Felipe Manuel} and Florian Vercruysse and Constantinos Goulas and Bernd Schulz and Petrov, {Roumen H.}",

note = "Funding Information: The authors are thankful to prof. J. Sietsma from TUDelft for kindly providing the facilities for the Dilatometry and Gleeble experiments. F. M. Castro Cerda gratefully acknowledges the support of the Chilean Government in the form of the CONICYT-PCHA/Doctorado Nacional/ 2013 Ph. D. grant, and of University of Santiago de Chile through the project DESEMPE{\~N}O N°25 - Project Code 1555LD. Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2019",

month = jan,

doi = "10.1002/srin.201800098",

language = "English",

volume = "90",

journal = "Steel research international",

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AU - Castro Cerda, Felipe Manuel

AU - Vercruysse, Florian

AU - Goulas, Constantinos

AU - Schulz, Bernd

AU - Petrov, Roumen H.

N1 - Funding Information: The authors are thankful to prof. J. Sietsma from TUDelft for kindly providing the facilities for the Dilatometry and Gleeble experiments. F. M. Castro Cerda gratefully acknowledges the support of the Chilean Government in the form of the CONICYT-PCHA/Doctorado Nacional/ 2013 Ph. D. grant, and of University of Santiago de Chile through the project DESEMPEÑO N°25 - Project Code 1555LD. Publisher Copyright: © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

PY - 2019/1

Y1 - 2019/1

N2 - The aim of the present work is to study the microstructure evolution of a cold-rolled low carbon steel alloyed with Cr, Mn, Mo, and Nb during continuous heating. The formation of austenite and its further transformation is examined by means of peak annealing experiments at three different heating rates, followed by quenching. The effect of carbide-forming alloying elements in the kinetics of austenite formation and decomposition is discussed with the aim of DICTRA calculations. Electron Probe Micro Analysis allows the detection of small compositional fluctuations within the microstructure, which are responsible for local changes in the mechanism of austenite formation. It is experimentally demonstrated that the temperature dependence of the austenite fraction is relatively insensitive to the heating rate. It is suggested that carbide-forming alloying elements slow down the kinetics of austenite formation.

AB - The aim of the present work is to study the microstructure evolution of a cold-rolled low carbon steel alloyed with Cr, Mn, Mo, and Nb during continuous heating. The formation of austenite and its further transformation is examined by means of peak annealing experiments at three different heating rates, followed by quenching. The effect of carbide-forming alloying elements in the kinetics of austenite formation and decomposition is discussed with the aim of DICTRA calculations. Electron Probe Micro Analysis allows the detection of small compositional fluctuations within the microstructure, which are responsible for local changes in the mechanism of austenite formation. It is experimentally demonstrated that the temperature dependence of the austenite fraction is relatively insensitive to the heating rate. It is suggested that carbide-forming alloying elements slow down the kinetics of austenite formation.

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KW - Massive

KW - Segregation

KW - Steel

KW - Ultrafast heating

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‘Flash’ Annealing in a Cold-Rolled Low Carbon Steel Alloyed With Cr, Mn, Mo, and Nb: Part I - Continuous Phase Transformations

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Keywords

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