Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights

In this study, the effect of thermochemical processes, such as nitriding and carburizing, on the microstructural evolution of superdúplex stainless steel is presented. The objective is to find a correlation between the microstructure and the mechanical properties of the constitutive phases of this s...

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Autores: Biserova Tahchieva, Alisiya, Ortiz Membrado, Laia|||0000-0001-9646-3226, Benítez Iglesias, Raúl|||0000-0002-8782-9406, Rius Ayra, Josep Oriol, Llorca Isern, Núria|||0000-0003-0501-3866, Mateo García, Antonio Manuel|||0000-0001-8336-6128, Jiménez Piqué, Emilio|||0000-0002-6950-611X
Formato: artículo
Fecha de publicación:2024
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/428447
Acesso em linha:https://hdl.handle.net/2117/428447
https://dx.doi.org/10.1016/j.surfcoat.2024.131441
Access Level:acceso embargado
Palavra-chave:Superduplex stainless steel
Gas nitriding process
Carburizing
Nanoindentation
Micromechanical properties
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
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spelling Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insightsBiserova Tahchieva, AlisiyaOrtiz Membrado, Laia|||0000-0001-9646-3226Benítez Iglesias, Raúl|||0000-0002-8782-9406Rius Ayra, Josep OriolLlorca Isern, Núria|||0000-0003-0501-3866Mateo García, Antonio Manuel|||0000-0001-8336-6128Jiménez Piqué, Emilio|||0000-0002-6950-611XSuperduplex stainless steelGas nitriding processCarburizingNanoindentationMicromechanical propertiesÀrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgiaIn this study, the effect of thermochemical processes, such as nitriding and carburizing, on the microstructural evolution of superdúplex stainless steel is presented. The objective is to find a correlation between the microstructure and the mechanical properties of the constitutive phases of this stainless steel (i.e., austenite and ferrite) and analyze the diffusion elements influence on the precipitation of secondary phases, such as sigma (s), chi (¿), nitrides, and carbides. Hardness (H) and elastic modulus (E) maps were obtained by using a high-speed nanoindentation technique. H and E values for the individual phases were determined through the application of Gaussian Mixture Model statistical analysis. Assessments of the mechanical properties of the different phases were achieved by overlaying field emission-scanning electron microscopy micrographs. An excellent correlation between microstructure and small-scale mechanical properties was attained. Secondary phases have been detected and nanoindentation statistics have proven their influence on the mechanical properties.Elsevier20242024-10-3020252025-04-2520262026-10-30journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/428447https://dx.doi.org/10.1016/j.surfcoat.2024.131441reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengembargoed accesshttp://purl.org/coar/access_right/c_f1cfinfo:eu-repo/semantics/embargoedAccessoai:upcommons.upc.edu:2117/4284472026-05-27T15:37:01Z
dc.title.none.fl_str_mv Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights
title Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights
spellingShingle Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights
Biserova Tahchieva, Alisiya
Superduplex stainless steel
Gas nitriding process
Carburizing
Nanoindentation
Micromechanical properties
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
title_short Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights
title_full Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights
title_fullStr Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights
title_full_unstemmed Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights
title_sort Surface modification of superduplex stainless steel with C and N: microstructural and nanomechanical insights
dc.creator.none.fl_str_mv Biserova Tahchieva, Alisiya
Ortiz Membrado, Laia|||0000-0001-9646-3226
Benítez Iglesias, Raúl|||0000-0002-8782-9406
Rius Ayra, Josep Oriol
Llorca Isern, Núria|||0000-0003-0501-3866
Mateo García, Antonio Manuel|||0000-0001-8336-6128
Jiménez Piqué, Emilio|||0000-0002-6950-611X
author Biserova Tahchieva, Alisiya
author_facet Biserova Tahchieva, Alisiya
Ortiz Membrado, Laia|||0000-0001-9646-3226
Benítez Iglesias, Raúl|||0000-0002-8782-9406
Rius Ayra, Josep Oriol
Llorca Isern, Núria|||0000-0003-0501-3866
Mateo García, Antonio Manuel|||0000-0001-8336-6128
Jiménez Piqué, Emilio|||0000-0002-6950-611X
author_role author
author2 Ortiz Membrado, Laia|||0000-0001-9646-3226
Benítez Iglesias, Raúl|||0000-0002-8782-9406
Rius Ayra, Josep Oriol
Llorca Isern, Núria|||0000-0003-0501-3866
Mateo García, Antonio Manuel|||0000-0001-8336-6128
Jiménez Piqué, Emilio|||0000-0002-6950-611X
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Superduplex stainless steel
Gas nitriding process
Carburizing
Nanoindentation
Micromechanical properties
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
topic Superduplex stainless steel
Gas nitriding process
Carburizing
Nanoindentation
Micromechanical properties
Àrees temàtiques de la UPC::Enginyeria dels materials::Metal·lúrgia
description In this study, the effect of thermochemical processes, such as nitriding and carburizing, on the microstructural evolution of superdúplex stainless steel is presented. The objective is to find a correlation between the microstructure and the mechanical properties of the constitutive phases of this stainless steel (i.e., austenite and ferrite) and analyze the diffusion elements influence on the precipitation of secondary phases, such as sigma (s), chi (¿), nitrides, and carbides. Hardness (H) and elastic modulus (E) maps were obtained by using a high-speed nanoindentation technique. H and E values for the individual phases were determined through the application of Gaussian Mixture Model statistical analysis. Assessments of the mechanical properties of the different phases were achieved by overlaying field emission-scanning electron microscopy micrographs. An excellent correlation between microstructure and small-scale mechanical properties was attained. Secondary phases have been detected and nanoindentation statistics have proven their influence on the mechanical properties.
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-10-30
2025
2025-04-25
2026
2026-10-30
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/428447
https://dx.doi.org/10.1016/j.surfcoat.2024.131441
url https://hdl.handle.net/2117/428447
https://dx.doi.org/10.1016/j.surfcoat.2024.131441
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/embargoedAccess
rights_invalid_str_mv embargoed access
http://purl.org/coar/access_right/c_f1cf
eu_rights_str_mv embargoedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869424105011281920
score 15.812455

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