Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study

Autores
Lanz, César Armando; Brizuela, Graciela Petra; Simonetti, Sandra Isabel
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The investigation combines microstructura l characterization analyses and atomistic modeling to elucidate the mechanism of carburization embrittlement of an iron-nickel-chromium alloy expo sed to high temperature. It was studied an austenitic Fe-25Cr- 20Ni-0.40C stainless steel obtained of th e tubes of the industrial cracking furnace af ter 25,000 h of servi ce at 900-1200 ºC. T he service-exposed material presented bigger carbides in the aust enitic matrix comparing with the as-cast material, cavities betwe en the grains and micro fissures in grain edges, indicating that th e material present damage by creep. The theoretical calculation s help us to interpret the changes in the alloy electronic structure and the chemical bonding. The atomic orbital occupations of the metallic bonds are affected during carburization. The strengths of the, Cr-Ni, Fe-Cr, Fe-Ni and Ni-Ni bonds nearest neighbors t o the carbon atoms are the most affected. The metallic bond weakening is mainly a consequence of the new C-Ni, C-Fe and C-Cr interactions formed after carburization phenomena.
Fil: Lanz, César Armando. Universidad Nacional del Sur; Argentina
Fil: Brizuela, Graciela Petra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Simonetti, Sandra Isabel. Universidad Tecnológica Nacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Materia
MICROALANYSIS TECHNIQUES
COMPUTATIONAL TECHNIQUES
IRON-NICKEL-CHORIUM ALLOY
CARBURIZATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/62705
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational studyLanz, César ArmandoBrizuela, Graciela PetraSimonetti, Sandra IsabelMICROALANYSIS TECHNIQUESCOMPUTATIONAL TECHNIQUESIRON-NICKEL-CHORIUM ALLOYCARBURIZATIONhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The investigation combines microstructura l characterization analyses and atomistic modeling to elucidate the mechanism of carburization embrittlement of an iron-nickel-chromium alloy expo sed to high temperature. It was studied an austenitic Fe-25Cr- 20Ni-0.40C stainless steel obtained of th e tubes of the industrial cracking furnace af ter 25,000 h of servi ce at 900-1200 ºC. T he service-exposed material presented bigger carbides in the aust enitic matrix comparing with the as-cast material, cavities betwe en the grains and micro fissures in grain edges, indicating that th e material present damage by creep. The theoretical calculation s help us to interpret the changes in the alloy electronic structure and the chemical bonding. The atomic orbital occupations of the metallic bonds are affected during carburization. The strengths of the, Cr-Ni, Fe-Cr, Fe-Ni and Ni-Ni bonds nearest neighbors t o the carbon atoms are the most affected. The metallic bond weakening is mainly a consequence of the new C-Ni, C-Fe and C-Cr interactions formed after carburization phenomena.Fil: Lanz, César Armando. Universidad Nacional del Sur; ArgentinaFil: Brizuela, Graciela Petra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaFil: Simonetti, Sandra Isabel. Universidad Tecnológica Nacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; ArgentinaIJRAET2016-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/62705Lanz, César Armando; Brizuela, Graciela Petra; Simonetti, Sandra Isabel; Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study; IJRAET; International Journal of Research in Advanced Engineering and Technology; 2; 1; 1-2016; 7-92455-0876CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.newengineeringjournal.in/archives/2016/vol2/issue1/2-2-35info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:52:30Zoai:ri.conicet.gov.ar:11336/62705instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:52:31.182CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study
title Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study
spellingShingle Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study
Lanz, César Armando
MICROALANYSIS TECHNIQUES
COMPUTATIONAL TECHNIQUES
IRON-NICKEL-CHORIUM ALLOY
CARBURIZATION
title_short Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study
title_full Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study
title_fullStr Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study
title_full_unstemmed Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study
title_sort Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study
dc.creator.none.fl_str_mv Lanz, César Armando
Brizuela, Graciela Petra
Simonetti, Sandra Isabel
author Lanz, César Armando
author_facet Lanz, César Armando
Brizuela, Graciela Petra
Simonetti, Sandra Isabel
author_role author
author2 Brizuela, Graciela Petra
Simonetti, Sandra Isabel
author2_role author
author
dc.subject.none.fl_str_mv MICROALANYSIS TECHNIQUES
COMPUTATIONAL TECHNIQUES
IRON-NICKEL-CHORIUM ALLOY
CARBURIZATION
topic MICROALANYSIS TECHNIQUES
COMPUTATIONAL TECHNIQUES
IRON-NICKEL-CHORIUM ALLOY
CARBURIZATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The investigation combines microstructura l characterization analyses and atomistic modeling to elucidate the mechanism of carburization embrittlement of an iron-nickel-chromium alloy expo sed to high temperature. It was studied an austenitic Fe-25Cr- 20Ni-0.40C stainless steel obtained of th e tubes of the industrial cracking furnace af ter 25,000 h of servi ce at 900-1200 ºC. T he service-exposed material presented bigger carbides in the aust enitic matrix comparing with the as-cast material, cavities betwe en the grains and micro fissures in grain edges, indicating that th e material present damage by creep. The theoretical calculation s help us to interpret the changes in the alloy electronic structure and the chemical bonding. The atomic orbital occupations of the metallic bonds are affected during carburization. The strengths of the, Cr-Ni, Fe-Cr, Fe-Ni and Ni-Ni bonds nearest neighbors t o the carbon atoms are the most affected. The metallic bond weakening is mainly a consequence of the new C-Ni, C-Fe and C-Cr interactions formed after carburization phenomena.
Fil: Lanz, César Armando. Universidad Nacional del Sur; Argentina
Fil: Brizuela, Graciela Petra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
Fil: Simonetti, Sandra Isabel. Universidad Tecnológica Nacional; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Física del Sur. Universidad Nacional del Sur. Departamento de Física. Instituto de Física del Sur; Argentina
description The investigation combines microstructura l characterization analyses and atomistic modeling to elucidate the mechanism of carburization embrittlement of an iron-nickel-chromium alloy expo sed to high temperature. It was studied an austenitic Fe-25Cr- 20Ni-0.40C stainless steel obtained of th e tubes of the industrial cracking furnace af ter 25,000 h of servi ce at 900-1200 ºC. T he service-exposed material presented bigger carbides in the aust enitic matrix comparing with the as-cast material, cavities betwe en the grains and micro fissures in grain edges, indicating that th e material present damage by creep. The theoretical calculation s help us to interpret the changes in the alloy electronic structure and the chemical bonding. The atomic orbital occupations of the metallic bonds are affected during carburization. The strengths of the, Cr-Ni, Fe-Cr, Fe-Ni and Ni-Ni bonds nearest neighbors t o the carbon atoms are the most affected. The metallic bond weakening is mainly a consequence of the new C-Ni, C-Fe and C-Cr interactions formed after carburization phenomena.
publishDate 2016
dc.date.none.fl_str_mv 2016-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/62705
Lanz, César Armando; Brizuela, Graciela Petra; Simonetti, Sandra Isabel; Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study; IJRAET; International Journal of Research in Advanced Engineering and Technology; 2; 1; 1-2016; 7-9
2455-0876
CONICET Digital
CONICET
url http://hdl.handle.net/11336/62705
identifier_str_mv Lanz, César Armando; Brizuela, Graciela Petra; Simonetti, Sandra Isabel; Corrosion of Fe-25Cr-20Ni-0.40C alloy: an experimental and computational study; IJRAET; International Journal of Research in Advanced Engineering and Technology; 2; 1; 1-2016; 7-9
2455-0876
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.newengineeringjournal.in/archives/2016/vol2/issue1/2-2-35
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv IJRAET
publisher.none.fl_str_mv IJRAET
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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