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dc.contributor.author
García Molleja, Javier
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dc.contributor.author
Nosei, L.
dc.contributor.author
Ferron, Julio
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dc.contributor.author
Bemporad, E.
dc.contributor.author
Lesage, J.
dc.contributor.author
Chicot D.
dc.contributor.author
Feugeas, Jorge Nestor
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dc.date.available
2017-03-01T21:10:40Z
dc.date.issued
2010-04
dc.identifier.citation
García Molleja, Javier; Nosei, L.; Ferron, Julio; Bemporad, E.; Lesage, J.; et al.; Characterization of expanded austenite developed on AISI 316L stainless steel by plasma carburization; Elsevier Science Sa; Surface And Coatings Technology; 204; 4-2010; 3750-3759
dc.identifier.issn
0257-8972
dc.identifier.uri
http://hdl.handle.net/11336/13445
dc.description.abstract
Expanded austenite generation through ion carburizing of AISI 316L using two different reactive gas mixtures (Ar 50%, H2 45%, CH4 5% and Ar 80%, H2 15%, CH4 5%) has been studied. It was found that an 14 µm surface layer of expanded austenite was developed with 30 min processing for both gas mixtures. Nevertheless, AES analyses have shown that on the 150 nm surface layer carbon in a concentration of 12% was diffused and located as carbide. For longer periods of processing, while for the gas mixture with 50% of Ar no significant modifications within those 150 nm surface layer were produced, for the gas mixture with 80% of Ar a gradual increase in the carbon concentration with time was found, with the extra carbon remaining as free carbon. The difference between both situations can be attributed to the different resulting current densities that have been of 7.0 mA cm−2 and 8.1 mA cm−2 for 50% and 80% of Ar respectively. Higher current densities result in higher carbon and Ar ions fluxes inducing, from one side surface element concentration modification through sputtering, and from the other the enhancement of carbon diffusion on the first hundred nanometers of the surface layers. This free carbon on top of the surface layers can act as solid lubricant reducing wear rate. Nevertheless, and in spite of the fact that expanded austenite was proved to be corrosion resistant, a reduction against NaCl solution corrosion in relation to the base material was observed. This lost to corrosion resistance can be attributed to carbide development on the layers closer to the surface that can work as a trigger for localized corrosion.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science Sa
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Surface Treatment
dc.subject
Ion Carburizing
dc.subject
Tribology of Solids
dc.subject
Expanded Austenite
dc.subject
Carbon Diffusion
dc.subject
Wear Protection
dc.subject.classification
Física de los Fluidos y Plasma
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Characterization of expanded austenite developed on AISI 316L stainless steel by plasma carburization
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-02-24T19:32:18Z
dc.journal.volume
204
dc.journal.pagination
3750-3759
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: García Molleja, Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
dc.description.fil
Fil: Nosei, L.. Universidad Nacional de Rosario; Argentina
dc.description.fil
Fil: Ferron, Julio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
dc.description.fil
Fil: Bemporad, E.. Universita Di Roma; Italia
dc.description.fil
Fil: Lesage, J.. Université Des Sciences Et Des Technologies de Lille;
dc.description.fil
Fil: Chicot D.. Université Des Sciences Et Des Technologies de Lille; Francia
dc.description.fil
Fil: Feugeas, Jorge Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina
dc.journal.title
Surface And Coatings Technology
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6TVV-4YXP153-2&_user=1678366&_coverDate=08%2F25%2F2010&_alid=1379492760&_rdoc=1&_fmt=high&_orig=search&_cdi=5544&_sort=r&_docanchor=&view=c&_ct=1&_acct=C000054147&_version=1&_urlVersion=0&_userid=1
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.surfcoat.2010.04.036
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