Solution heat treatment of plasma nitrided 15-5PH stainless steel - Part I: Improvement of the corrosion resistance

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dc.contributor.authorBorges, P. C.
dc.contributor.authorRocha, Luís Augusto Sousa Marques da [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2016-03-02T12:58:23Z
dc.date.available2016-03-02T12:58:23Z
dc.date.issued2011
dc.description.abstractThe results of the investigation on Solution Heat Treatment of Plasma Nitrided (SHTPN) precipitation-hardened steel 15-5PH are presented. The layers have been obtained by the plasma nitriding process followed by solution heat treatment at different temperatures. The influence of the solution heat treatment after nitriding on the dissolution process of the nitrided layer has been considered. The nitrided layers were studied by scanning electron microscopy, X-ray microanalysis (EDX), and X-Ray diffraction. Micro-hardness tests of the nitrided layers and solubilized nitrided layers have been carried out and interpreted by considering the processing conditions. It was found that high nitrogen austenitic cases could be obtained after SHTPN of martensitic precipitation-hardened steel (15-5PH). When Solution Heat Treatment (SHT) was performed at 1100 °C, some precipitates were observed. The amount of precipitates significantly reduced when the temperature increased. The EDX microanalysis indicated that the precipitate may be chromium niobium nitride. When the precipitation on the austenite phase occurred in small amount, the corrosion resistance increased in SHTPN specimens and the pit nucleation potential also increased. The best corrosion result occurred for SHT at 1200 °C.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Física, Faculdade de Ciências de Bauru, Bauru, Avenida Engenheiro Luiz Edmundo Carrijo Coube, Residencial Presidente Geisel, CEP 17033360, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Física, Faculdade de Ciências de Bauru, Bauru, Avenida Engenheiro Luiz Edmundo Carrijo Coube, Residencial Presidente Geisel, CEP 17033360, SP, Brasil
dc.format.extent107-117
dc.identifierhttp://www.kovmat.sav.sk/abstract.php?rr=49&cc=2&ss=107
dc.identifier.citationKovové Materiály, v. 49, n. 2, p. 107-117, 2011.
dc.identifier.issn0023-432X
dc.identifier.lattes6667758239563438
dc.identifier.urihttp://hdl.handle.net/11449/134787
dc.language.isoeng
dc.relation.ispartofKovové Materiály
dc.relation.ispartofjcr0.636
dc.rights.accessRightsAcesso restrito
dc.sourceCurrículo Lattes
dc.subjectSolution heat treatmenten
dc.subjectPlasma nitridingen
dc.subjectPrecipitation-hardening stainless steelen
dc.subject15-5PHen
dc.subjectSHTPNen
dc.subjectCorrosion resistanceen
dc.titleSolution heat treatment of plasma nitrided 15-5PH stainless steel - Part I: Improvement of the corrosion resistanceen
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentFísica - FCpt

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