A Study of Correlations between Chemical Composition, Hot Rolling Process Pa rameters, Microstructure and Mechanical Properties of Hot Rolled DP600 Steel

DP600 steel is widely used in the automotive industry due to its exceptionally favourable combination of high tensile strength and good ductility. In the hot-rolling process, DP600 steel is produced by use of controlled cooling of the rolled strip from temperature above Ar3 to temperature below Ms....

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Main Authors: T. Kaźmierski, J. Krawczyk, Ł. Frocisz, P. Matusiewicz
Format: Article
Language:English
Published: Polish Academy of Sciences 2025-06-01
Series:Archives of Metallurgy and Materials
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Online Access:https://journals.pan.pl/Content/135521/AMM-2025-2-17-Kazimierski.pdf
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author T. Kaźmierski
J. Krawczyk
Ł. Frocisz
P. Matusiewicz
author_facet T. Kaźmierski
J. Krawczyk
Ł. Frocisz
P. Matusiewicz
author_sort T. Kaźmierski
collection DOAJ
description DP600 steel is widely used in the automotive industry due to its exceptionally favourable combination of high tensile strength and good ductility. In the hot-rolling process, DP600 steel is produced by use of controlled cooling of the rolled strip from temperature above Ar3 to temperature below Ms. In this process, it is quite difficult to control key process parameters such as the time or temperature, and the final microstructure of the material is also affected by the degree of deformation of the material at various stages of the process. This paper presents a statistical analysis of the effect of chemical composition and selected hot rolling process parameters on the microstructure of DP600 sheet with respect to its mechanical properties. Based on industrial data from hot rolling mill combined with extended microstructure analysis, it was possible to find correlations between some of the analysed parameters and material properties. Among many correlations discussed in this work, most notable are those between martensite morphology and mechanical properties, between Mn and Si concentration and martensite morphology and between rolling speed, strain, cooling rate and mechanical properties.
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institution Kabale University
issn 2300-1909
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publishDate 2025-06-01
publisher Polish Academy of Sciences
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series Archives of Metallurgy and Materials
spelling doaj-art-39f2bfae500745c8bbab1277ff1ad0552025-08-20T03:28:18ZengPolish Academy of SciencesArchives of Metallurgy and Materials2300-19092025-06-01vol. 70No 2681689https://doi.org/10.24425/amm.2025.153469A Study of Correlations between Chemical Composition, Hot Rolling Process Pa rameters, Microstructure and Mechanical Properties of Hot Rolled DP600 SteelT. Kaźmierski0https://orcid.org/0000-0002-2477-5324J. Krawczyk1https://orcid.org/0000-0002-7893-1177Ł. Frocisz2https://orcid.org/0000-0003-0484-8845P. Matusiewicz3https://orcid.org/0000-0003-1744-5690ArcelorMitt al Poland S.A. Unit in Krakow, Tadeusza Sendzimira 1 Street, 31-752 Krakow, Poland; AGH Doctoral School, al. Mickiewicza 30, 30-059 Krakow, PolandAGH University of Krakow, Faculty of Metals Engineering and Computer Science, Al. Mickiewicza 30, 30-059 Krakow, PolandAGH University of Krakow, Faculty of Metals Engineering and Computer Science, Al. Mickiewicza 30, 30-059 Krakow, PolandAGH University of Krakow, Faculty of Metals Engineering and Computer Science, Al. Mickiewicza 30, 30-059 Krakow, PolandDP600 steel is widely used in the automotive industry due to its exceptionally favourable combination of high tensile strength and good ductility. In the hot-rolling process, DP600 steel is produced by use of controlled cooling of the rolled strip from temperature above Ar3 to temperature below Ms. In this process, it is quite difficult to control key process parameters such as the time or temperature, and the final microstructure of the material is also affected by the degree of deformation of the material at various stages of the process. This paper presents a statistical analysis of the effect of chemical composition and selected hot rolling process parameters on the microstructure of DP600 sheet with respect to its mechanical properties. Based on industrial data from hot rolling mill combined with extended microstructure analysis, it was possible to find correlations between some of the analysed parameters and material properties. Among many correlations discussed in this work, most notable are those between martensite morphology and mechanical properties, between Mn and Si concentration and martensite morphology and between rolling speed, strain, cooling rate and mechanical properties.https://journals.pan.pl/Content/135521/AMM-2025-2-17-Kazimierski.pdfdual phase steelshot rolling processmechanical propertiesmicrostructure
spellingShingle T. Kaźmierski
J. Krawczyk
Ł. Frocisz
P. Matusiewicz
A Study of Correlations between Chemical Composition, Hot Rolling Process Pa rameters, Microstructure and Mechanical Properties of Hot Rolled DP600 Steel
Archives of Metallurgy and Materials
dual phase steels
hot rolling process
mechanical properties
microstructure
title A Study of Correlations between Chemical Composition, Hot Rolling Process Pa rameters, Microstructure and Mechanical Properties of Hot Rolled DP600 Steel
title_full A Study of Correlations between Chemical Composition, Hot Rolling Process Pa rameters, Microstructure and Mechanical Properties of Hot Rolled DP600 Steel
title_fullStr A Study of Correlations between Chemical Composition, Hot Rolling Process Pa rameters, Microstructure and Mechanical Properties of Hot Rolled DP600 Steel
title_full_unstemmed A Study of Correlations between Chemical Composition, Hot Rolling Process Pa rameters, Microstructure and Mechanical Properties of Hot Rolled DP600 Steel
title_short A Study of Correlations between Chemical Composition, Hot Rolling Process Pa rameters, Microstructure and Mechanical Properties of Hot Rolled DP600 Steel
title_sort study of correlations between chemical composition hot rolling process pa rameters microstructure and mechanical properties of hot rolled dp600 steel
topic dual phase steels
hot rolling process
mechanical properties
microstructure
url https://journals.pan.pl/Content/135521/AMM-2025-2-17-Kazimierski.pdf
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