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dc.contributor.CRUESPUniversidade Estadual de Campinaspt_BR
dc.typeArtigo de periódicopt_BR
dc.titleNitriding of AISI 4140 steel by a low energy broad ion sourcept_BR
dc.contributor.authorOchoa, EApt_BR
dc.contributor.authorFigueroa, CApt_BR
dc.contributor.authorAlvarez, Fpt_BR
unicamp.author.emailalvarez@ifi.unicamp.brpt_BR
unicamp.authorUniv Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazilpt_BR
dc.subject.wosAustenitic Stainless-steelpt_BR
dc.subject.wosPlasmapt_BR
dc.subject.wosDiffusionpt_BR
dc.subject.wosHardnesspt_BR
dc.subject.wosGrowthpt_BR
dc.subject.wosModelpt_BR
dc.subject.wosIronpt_BR
dc.description.abstractA comprehensive study of the thermochemical nitriding process of steel AISI 4140 by low energy ion implantation (Kaufmann cell). is reported. Different times of implantation were employed and the studied samples were characterized by x-ray diffraction, in situ photoemission electron spectroscopy, scanning electron microscopy, and hardness (nanoindentation) measurements. The linear relationship between nitrogen content and hardness was verified. The structure of the nitrided layer was characterized yielding that the compound layer is formed by coarse precipitates, around small grains, constituted principally by epsilon-Fe2-3N and gamma-Fe4N phases and the diffusion zone is formed by fine precipitates, around big grains of the original martensitic phase, constituted principally by gamma-Fe4N phase. Finally, a diffusion model for multiphase systems was applied to determine effective diffusion coefficients of nitrogen in the different phases. (c) 2006 American Vacuum Society.pt
dc.relation.ispartofJournal Of Vacuum Science & Technology Apt_BR
dc.relation.ispartofabbreviationJ. Vac. Sci. Technol. Apt_BR
dc.publisher.cityMelvillept_BR
dc.publisher.countryEUApt_BR
dc.publisherA V S Amer Inst Physicspt_BR
dc.date.issued2006pt_BR
dc.date.monthofcirculationNOV-DECpt_BR
dc.identifier.citationJournal Of Vacuum Science & Technology A. A V S Amer Inst Physics, v. 24, n. 6, n. 2113, n. 2116, 2006.pt_BR
dc.language.isoenpt_BR
dc.description.volume24pt_BR
dc.description.issuenumber6pt_BR
dc.description.firstpage2113pt_BR
dc.description.lastpage2116pt_BR
dc.rightsabertopt_BR
dc.sourceWeb of Sciencept_BR
dc.identifier.issn0734-2101pt_BR
dc.identifier.wosidWOS:000242484900021pt_BR
dc.identifier.doi10.1116/1.2356480pt_BR
dc.date.available2014-11-13T17:03:35Z
dc.date.available2015-11-26T16:01:33Z-
dc.date.accessioned2014-11-13T17:03:35Z
dc.date.accessioned2015-11-26T16:01:33Z-
dc.description.provenanceMade available in DSpace on 2014-11-13T17:03:35Z (GMT). No. of bitstreams: 1 WOS000242484900021.pdf: 489237 bytes, checksum: dce984389fefe8de17f19ee0e05b8153 (MD5) Previous issue date: 2006en
dc.description.provenanceMade available in DSpace on 2015-11-26T16:01:33Z (GMT). No. of bitstreams: 2 WOS000242484900021.pdf: 489237 bytes, checksum: dce984389fefe8de17f19ee0e05b8153 (MD5) WOS000242484900021.pdf.txt: 20008 bytes, checksum: 4aa734a0c560cbb66d288007632d0ed4 (MD5) Previous issue date: 2006en
dc.identifier.urihttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/81803pt_BR
dc.identifier.urihttp://www.repositorio.unicamp.br/handle/REPOSIP/81803
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/81803-
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