Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite

Excellent mechanical properties of nanostructured bainitic steels are primarily related to the ultra fine scale of their structure constituents. Typically, such structure is exhibited by suitably treated steels with high carbon and high silicon content. Regardless, the common application of this ste...

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Detalles Bibliográficos
Autores: Królicka, Aleksandra, Zak, A., García Caballero, Francisca
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/257428
Acceso en línea:http://hdl.handle.net/10261/257428
Access Level:acceso abierto
Palabra clave:Retained austenite
Austenite stability
Nanobainite
Nanostructured bainite
BainiteThermal stability
Elevated temperatures
Welding
Corrosion resistance
Industry
Applications
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spelling Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austeniteKrólicka, AleksandraZak, A.García Caballero, FranciscaRetained austeniteAustenite stabilityNanobainiteNanostructured bainiteBainiteThermal stabilityElevated temperaturesWeldingCorrosion resistanceIndustryApplicationsExcellent mechanical properties of nanostructured bainitic steels are primarily related to the ultra fine scale of their structure constituents. Typically, such structure is exhibited by suitably treated steels with high carbon and high silicon content. Regardless, the common application of this steel grade in the industry is limited by some in-used properties that have not yet been explained. This mainly concerns the possibility of joining, long-term operationing at elevated temperatures and ensuring corrosion resistance. The feature promoting the provision of these properties is the sufficiently high thermal stability of the retained austenite. Enhancing thermal stability would allow for the application of these steels in the automotive, energy and marine industries. In contrast to the well-known control of the mechanical stability of the retained austenite, thermal stability requires a different approach in the context of chemical composition design and heat treatment parameters. This work presents the concept of increasing the thermal stability of the retained austenite and its influence on the improvement of the in-used properties of nanostructured bainitic steels. Mechanisms ensuring higher stability of the microstructure at elevated temperatures were reviewed, such as controlling the morphology and carbon content of retained austenite, solution strengthening, precipitation of intermetallic phases, and the prospect of secondary hardening.This work was supported by the National Science Centre (Preludium Project, No. 2020/37/N/ST8/03324, title: The concept of high-strength, thermal stable nanostructured bainitic steel with increased weldability”).ElsevierNational Science Centre (Poland)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220212022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/257428reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.matdes.2021.110143Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2574282026-05-22T06:33:51Z
dc.title.none.fl_str_mv Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite
title Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite
spellingShingle Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite
Królicka, Aleksandra
Retained austenite
Austenite stability
Nanobainite
Nanostructured bainite
BainiteThermal stability
Elevated temperatures
Welding
Corrosion resistance
Industry
Applications
title_short Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite
title_full Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite
title_fullStr Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite
title_full_unstemmed Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite
title_sort Enhancing technological prospect of nanostructured bainitic steels by the control of thermal stability of austenite
dc.creator.none.fl_str_mv Królicka, Aleksandra
Zak, A.
García Caballero, Francisca
author Królicka, Aleksandra
author_facet Królicka, Aleksandra
Zak, A.
García Caballero, Francisca
author_role author
author2 Zak, A.
García Caballero, Francisca
author2_role author
author
dc.contributor.none.fl_str_mv National Science Centre (Poland)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Retained austenite
Austenite stability
Nanobainite
Nanostructured bainite
BainiteThermal stability
Elevated temperatures
Welding
Corrosion resistance
Industry
Applications
topic Retained austenite
Austenite stability
Nanobainite
Nanostructured bainite
BainiteThermal stability
Elevated temperatures
Welding
Corrosion resistance
Industry
Applications
description Excellent mechanical properties of nanostructured bainitic steels are primarily related to the ultra fine scale of their structure constituents. Typically, such structure is exhibited by suitably treated steels with high carbon and high silicon content. Regardless, the common application of this steel grade in the industry is limited by some in-used properties that have not yet been explained. This mainly concerns the possibility of joining, long-term operationing at elevated temperatures and ensuring corrosion resistance. The feature promoting the provision of these properties is the sufficiently high thermal stability of the retained austenite. Enhancing thermal stability would allow for the application of these steels in the automotive, energy and marine industries. In contrast to the well-known control of the mechanical stability of the retained austenite, thermal stability requires a different approach in the context of chemical composition design and heat treatment parameters. This work presents the concept of increasing the thermal stability of the retained austenite and its influence on the improvement of the in-used properties of nanostructured bainitic steels. Mechanisms ensuring higher stability of the microstructure at elevated temperatures were reviewed, such as controlling the morphology and carbon content of retained austenite, solution strengthening, precipitation of intermetallic phases, and the prospect of secondary hardening.
publishDate 2021
dc.date.none.fl_str_mv 2021
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/257428
url http://hdl.handle.net/10261/257428
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.matdes.2021.110143
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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