Effect of post-oxidation times in the nitrocarburizing process on the wear behavior of an AISI 4140 steel

Basit Öğe Kaydı
dc.authoridAkar, Neset/0000-0003-2933-4170
dc.authoridTaskoparan Yilmaz, Ummihan/0000-0001-9058-3446
dc.authoridKilicli, Volkan/0000-0002-0456-5987
dc.contributor.authorYilmaz, Ummihan T.
dc.contributor.authorErkan, Ayse
dc.contributor.authorAkar, Neset
dc.contributor.authorKilicli, Volkan
dc.date.accessioned2025-01-21T16:38:00Z
dc.date.available2025-01-21T16:38:00Z
dc.date.issued2024
dc.departmentKırıkkale Üniversitesi
dc.description.abstractThis study investigates the influence of post-oxidation duration on the wear performance and microstructural features of AISI 4140 steel subjected to nitrocarburizing followed by post-oxidation. For this aim, the quenched and tempered AISI 4140 samples were nitrocarburized (NC) and post-oxidized (PO) at various times (45-180 min) under low vacuum. Microstructural features were investigated using optical microscopy, scanning electron microscope (SEM), energy-dispersive X-ray spectrum analysis (EDS), X-ray diffraction (XRD) analysis, and microhardness test. Wear behavior was evaluated using a ball-on-disk tribometer. Experimental results showed that the structures consisting of nitride layer (epsilon-Fe2-3N) and gamma '-Fe4N + iron oxide (Fe3O4) were obtained at the top surfaces of the samples. Increasing post-oxidation times resulted in a notable enhancement in the thickness of the Fe3O4 layer. The growing Fe3O4 layer has induced the closing of micro porosities for further post-oxidizing times, leading to decreased surface roughness of the samples. It was determined that the post-oxidation times have no significant effect on the hardness profiles of NC + PO samples. The highest (0.375) and lowest (0.276) mean coefficient of friction was obtained in the post-oxidation times of 150 and 180 min, respectively. The best wear rate was obtained in the post-oxidized sample for 150 min.
dc.description.sponsorshipSmall and Medium Enterprises Development Organization of Turkey (KOSGEB) [2019/10/6, 6570]; Small and Medium Enterprises Development Organization of Turkey
dc.description.sponsorshipThe authors would like to thank the Small and Medium Enterprises Development Organization of Turkey (KOSGEB No: 2019/10/6;6570) for financial support of this study.
dc.identifier.doi10.1515/mt-2024-0062
dc.identifier.endpage1794
dc.identifier.issn0025-5300
dc.identifier.issn2195-8572
dc.identifier.issue11
dc.identifier.scopus2-s2.0-85205300979
dc.identifier.scopusqualityQ2
dc.identifier.startpage1782
dc.identifier.urihttps://doi.org/10.1515/mt-2024-0062
dc.identifier.urihttps://hdl.handle.net/20.500.12587/24582
dc.identifier.volume66
dc.identifier.wosWOS:001320992300001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWalter De Gruyter Gmbh
dc.relation.ispartofMaterials Testing
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241229
dc.subjectAISI 4140 steel; nitrocarburizing; post-oxidation; oxide layer; wear behavior
dc.titleEffect of post-oxidation times in the nitrocarburizing process on the wear behavior of an AISI 4140 steel
dc.typeArticle

Dosyalar

Koleksiyon

WOS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu