Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys

The ability to produce high-entropy alloys with an amorphous structure, so-called high-entropy metallic glasses (HEMGs), offers the possibility to produce new compositions with good mechanical properties and resistance to corrosion. In this study, corrosion behavior was studied in two HEMGs, FeCoNiC...

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Autores: Panahi, Seyedeh Leila, Bruna Escuer, Pere|||0000-0002-7411-1278, Pineda Soler, Eloi|||0000-0002-1871-3848
Formato: artículo
Fecha de publicación:2022
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:2117/380360
Acesso em linha:https://hdl.handle.net/2117/380360
https://dx.doi.org/10.3390/ma15248897
Access Level:acceso abierto
Palavra-chave:Metallic glasses
Metallic glasses--Corrosion
Corrosion
High-entropy alloys
Vidres metàl·lics
Vidres metàl·lics--Corrosió
Àrees temàtiques de la UPC::Física
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spelling Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloysPanahi, Seyedeh LeilaBruna Escuer, Pere|||0000-0002-7411-1278Pineda Soler, Eloi|||0000-0002-1871-3848Metallic glassesMetallic glasses--CorrosionCorrosionHigh-entropy alloysMetallic glassesVidres metàl·licsVidres metàl·lics--CorrosióÀrees temàtiques de la UPC::FísicaThe ability to produce high-entropy alloys with an amorphous structure, so-called high-entropy metallic glasses (HEMGs), offers the possibility to produce new compositions with good mechanical properties and resistance to corrosion. In this study, corrosion behavior was studied in two HEMGs, FeCoNiCrB and FeCoNiCr(BSi). In both cases, the total amount of metalloid atoms was kept constant at 20 at.%. The electrochemical behavior of these alloys was studied by means of linear polarization resistance (LPR) measurements and electrochemical impedance spectroscopy in a 3 wt.% NaCl solution. The effect of corrosion was characterized by using X-ray photoelectron spectroscopy (XPS) and the surface morphology was checked using a scanning electron microscope (SEM). The results show that samples with B but without Si exhibit better corrosion resistance due to its chemical homogeneity and lack of structural heterogeneity.Multidisciplinary Digital Publishing Institute (MDPI)20222022-12-1320232023-01-12journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/380360https://dx.doi.org/10.3390/ma15248897reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/3803602026-05-27T15:37:01Z
dc.title.none.fl_str_mv Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys
title Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys
spellingShingle Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys
Panahi, Seyedeh Leila
Metallic glasses
Metallic glasses--Corrosion
Corrosion
High-entropy alloys
Metallic glasses
Vidres metàl·lics
Vidres metàl·lics--Corrosió
Àrees temàtiques de la UPC::Física
title_short Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys
title_full Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys
title_fullStr Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys
title_full_unstemmed Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys
title_sort Effect of Si and B on the electrochemical behavior of FeCoNiCr-based high-entropy amorphous alloys
dc.creator.none.fl_str_mv Panahi, Seyedeh Leila
Bruna Escuer, Pere|||0000-0002-7411-1278
Pineda Soler, Eloi|||0000-0002-1871-3848
author Panahi, Seyedeh Leila
author_facet Panahi, Seyedeh Leila
Bruna Escuer, Pere|||0000-0002-7411-1278
Pineda Soler, Eloi|||0000-0002-1871-3848
author_role author
author2 Bruna Escuer, Pere|||0000-0002-7411-1278
Pineda Soler, Eloi|||0000-0002-1871-3848
author2_role author
author
dc.subject.none.fl_str_mv Metallic glasses
Metallic glasses--Corrosion
Corrosion
High-entropy alloys
Metallic glasses
Vidres metàl·lics
Vidres metàl·lics--Corrosió
Àrees temàtiques de la UPC::Física
topic Metallic glasses
Metallic glasses--Corrosion
Corrosion
High-entropy alloys
Metallic glasses
Vidres metàl·lics
Vidres metàl·lics--Corrosió
Àrees temàtiques de la UPC::Física
description The ability to produce high-entropy alloys with an amorphous structure, so-called high-entropy metallic glasses (HEMGs), offers the possibility to produce new compositions with good mechanical properties and resistance to corrosion. In this study, corrosion behavior was studied in two HEMGs, FeCoNiCrB and FeCoNiCr(BSi). In both cases, the total amount of metalloid atoms was kept constant at 20 at.%. The electrochemical behavior of these alloys was studied by means of linear polarization resistance (LPR) measurements and electrochemical impedance spectroscopy in a 3 wt.% NaCl solution. The effect of corrosion was characterized by using X-ray photoelectron spectroscopy (XPS) and the surface morphology was checked using a scanning electron microscope (SEM). The results show that samples with B but without Si exhibit better corrosion resistance due to its chemical homogeneity and lack of structural heterogeneity.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-12-13
2023
2023-01-12
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/2117/380360
https://dx.doi.org/10.3390/ma15248897
url https://hdl.handle.net/2117/380360
https://dx.doi.org/10.3390/ma15248897
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
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
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score 15,301603

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