Kinetics of Formation of Fe2B Layers on AISI S1 Steel
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Materials research (São Carlos. Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000500215 |
Resumo: | In the present work, the AISI S1 steel was pack-borided in the temperature range 1123-1273 K for 2- 8 h to form a compact layer of Fe2B at the material surface. A recent kinetic approach, based on the integral method, was proposed to estimate the boron diffusion coefficients in the Fe2B layers formed on AISI S1 steel in the temperature range 1123-1273 K. In this model, the boron profile concentration in the Fe2B layer is described by a polynomial form based on the Goodman’s method. As a main result, the value of activation energy for boron diffusion in AISI S1 steel was estimated as 199.15 kJmol-1 by the integral method and compared with the values available in the literature. Three extra boriding conditions were used to extend the validity of the kinetic model based on the integral method as well as other diffusion models. An experimental validation was made by comparing the values of Fe2B layers’ thicknesses with those predicted by different diffusion models. Finally, an iso-thickness diagram was proposed for describing the evolution of Fe2B layer thickness as a function of boriding parameters. |
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Materials research (São Carlos. Online) |
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Kinetics of Formation of Fe2B Layers on AISI S1 SteelIncubation timeDiffusion modelsActivation energyGrowth kineticsIntegral methodIn the present work, the AISI S1 steel was pack-borided in the temperature range 1123-1273 K for 2- 8 h to form a compact layer of Fe2B at the material surface. A recent kinetic approach, based on the integral method, was proposed to estimate the boron diffusion coefficients in the Fe2B layers formed on AISI S1 steel in the temperature range 1123-1273 K. In this model, the boron profile concentration in the Fe2B layer is described by a polynomial form based on the Goodman’s method. As a main result, the value of activation energy for boron diffusion in AISI S1 steel was estimated as 199.15 kJmol-1 by the integral method and compared with the values available in the literature. Three extra boriding conditions were used to extend the validity of the kinetic model based on the integral method as well as other diffusion models. An experimental validation was made by comparing the values of Fe2B layers’ thicknesses with those predicted by different diffusion models. Finally, an iso-thickness diagram was proposed for describing the evolution of Fe2B layer thickness as a function of boriding parameters.ABM, ABC, ABPol2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000500215Materials Research v.21 n.5 2018reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0173info:eu-repo/semantics/openAccessZuno-Silva,JorgeKeddam,MouradOrtiz-Domínguez,MartinCarlos Elias-Espinosac,MiltonCervantes-Sodi,FelipeOseguera-Peña,JoaquínDe-Dios,Libia Daniella FernándezGomez-Vargas,Oscar Armandoeng2018-07-13T00:00:00Zoai:scielo:S1516-14392018000500215Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-07-13T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false |
dc.title.none.fl_str_mv |
Kinetics of Formation of Fe2B Layers on AISI S1 Steel |
title |
Kinetics of Formation of Fe2B Layers on AISI S1 Steel |
spellingShingle |
Kinetics of Formation of Fe2B Layers on AISI S1 Steel Zuno-Silva,Jorge Incubation time Diffusion models Activation energy Growth kinetics Integral method |
title_short |
Kinetics of Formation of Fe2B Layers on AISI S1 Steel |
title_full |
Kinetics of Formation of Fe2B Layers on AISI S1 Steel |
title_fullStr |
Kinetics of Formation of Fe2B Layers on AISI S1 Steel |
title_full_unstemmed |
Kinetics of Formation of Fe2B Layers on AISI S1 Steel |
title_sort |
Kinetics of Formation of Fe2B Layers on AISI S1 Steel |
author |
Zuno-Silva,Jorge |
author_facet |
Zuno-Silva,Jorge Keddam,Mourad Ortiz-Domínguez,Martin Carlos Elias-Espinosac,Milton Cervantes-Sodi,Felipe Oseguera-Peña,Joaquín De-Dios,Libia Daniella Fernández Gomez-Vargas,Oscar Armando |
author_role |
author |
author2 |
Keddam,Mourad Ortiz-Domínguez,Martin Carlos Elias-Espinosac,Milton Cervantes-Sodi,Felipe Oseguera-Peña,Joaquín De-Dios,Libia Daniella Fernández Gomez-Vargas,Oscar Armando |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Zuno-Silva,Jorge Keddam,Mourad Ortiz-Domínguez,Martin Carlos Elias-Espinosac,Milton Cervantes-Sodi,Felipe Oseguera-Peña,Joaquín De-Dios,Libia Daniella Fernández Gomez-Vargas,Oscar Armando |
dc.subject.por.fl_str_mv |
Incubation time Diffusion models Activation energy Growth kinetics Integral method |
topic |
Incubation time Diffusion models Activation energy Growth kinetics Integral method |
description |
In the present work, the AISI S1 steel was pack-borided in the temperature range 1123-1273 K for 2- 8 h to form a compact layer of Fe2B at the material surface. A recent kinetic approach, based on the integral method, was proposed to estimate the boron diffusion coefficients in the Fe2B layers formed on AISI S1 steel in the temperature range 1123-1273 K. In this model, the boron profile concentration in the Fe2B layer is described by a polynomial form based on the Goodman’s method. As a main result, the value of activation energy for boron diffusion in AISI S1 steel was estimated as 199.15 kJmol-1 by the integral method and compared with the values available in the literature. Three extra boriding conditions were used to extend the validity of the kinetic model based on the integral method as well as other diffusion models. An experimental validation was made by comparing the values of Fe2B layers’ thicknesses with those predicted by different diffusion models. Finally, an iso-thickness diagram was proposed for describing the evolution of Fe2B layer thickness as a function of boriding parameters. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000500215 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000500215 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1980-5373-mr-2018-0173 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
ABM, ABC, ABPol |
publisher.none.fl_str_mv |
ABM, ABC, ABPol |
dc.source.none.fl_str_mv |
Materials Research v.21 n.5 2018 reponame:Materials research (São Carlos. Online) instname:Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL |
instname_str |
Universidade Federal de São Carlos (UFSCAR) |
instacron_str |
ABM ABC ABPOL |
institution |
ABM ABC ABPOL |
reponame_str |
Materials research (São Carlos. Online) |
collection |
Materials research (São Carlos. Online) |
repository.name.fl_str_mv |
Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR) |
repository.mail.fl_str_mv |
dedz@power.ufscar.br |
_version_ |
1754212673180925952 |