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dc.contributor.authorÖztürk, Orhan
dc.contributor.authorOnmuş, Ortaç
dc.contributor.authorWilleamson, Don L.
dc.date.accessioned2016-07-20T13:18:36Z
dc.date.available2016-07-20T13:18:36Z
dc.date.issued2005-06
dc.identifier.citationÖztürk, O., Onmuş, O., and Willeamson D.L. (2005). Microstructural, mechanical, and corrosion characterization of plasma-nitrided plastic injection mould steel. Surface and Coatings Technology, 196(1-3 SPEC), 341-348. doi:10.1016/j.surfcoat.2004.08.154en_US
dc.identifier.issn0257-8972
dc.identifier.urihttps://doi.org/10.1016/j.surfcoat.2004.08.154
dc.identifier.urihttp://hdl.handle.net/11147/1944
dc.description.abstractPlasma nitriding can be used to improve wear and corrosion behaviour of moulds for plastic injection by modifying the near-surface layers of these materials. In this study, a ferritic stainless steel (X36CrMo17) was plasma nitrided at 520-540 °C for 15-18 h under various gas mixtures of N2+H2 in an industrial nitriding facility. The nitrided layer microstructures, thicknesses, and strengths were studied by X-ray diffraction (XRD), conversion electron and X-ray Mössbauer spectroscopies (CEMS and CXMS), cross-sectional scanning electron microscopy (SEM), and cross-sectional nanohardness measurements. The corrosion behaviour was investigated by a salt spray method. Combined Mössbauer, XRD, and SEM analyses demonstrate that (Fe,Cr,Mn)-nitrides, the ε- and γ′-nitrides, the Fe3C-like carbide, and CrN are distributed in the top nitrided layers of several micron thickness. The CEMS and CXMS analyses clearly show the nearly complete decomposition of the surface and deeper layers into phase separated mixtures of pure bcc-Fe, (Fe,Cr,Mn)-nitrides, and CrN. The nitriding conditions with the gas composition N2/H2=1 produces the thickest nitrided layer (∼135 μm) with enhanced corrosion protection. The nanohardness of the surface layers is found to be plateau-shaped and increased by about a factor of three in comparison to that of the substrate material.en_US
dc.description.sponsorshipTÜBİTAK-TİDEP #3000249en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.surfcoat.2004.08.154en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectInjection mould steelen_US
dc.subjectMössbauer spectroscopyen_US
dc.subjectNanohardnessen_US
dc.subjectPlasma nitridingen_US
dc.subjectSalt spray corrosion analysisen_US
dc.subjectX-ray diffractionen_US
dc.subjectStainless steelen_US
dc.titleMicrostructural, mechanical, and corrosion characterization of plasma-nitrided plastic injection mould steelen_US
dc.typearticleen_US
dc.contributor.authorIDTR4824en_US
dc.contributor.iztechauthorÖztürk, Orhan
dc.contributor.iztechauthorOnmuş, Ortaç
dc.relation.journalSurface and Coatings Technologyen_US
dc.contributor.departmentIzmir Institute of Technology. Physicsen_US
dc.identifier.volume196en_US
dc.identifier.issue1-3 SPECen_US
dc.identifier.startpage341en_US
dc.identifier.endpage348en_US
dc.identifier.wosWOS:000229375600068
dc.identifier.scopusSCOPUS:2-s2.0-18244401636
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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