Characterization of fracture (part II): investigation of dry sliding wear mechanism of GG20 and GG25 cast iron materials used for valves

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dc.contributor.authorPolat, Şeyda
dc.contributor.authorAtapek, Şaban Hakan
dc.contributor.authorTüredi, Enbiya
dc.contributor.authorTaşlıçukur, Zeynep
dc.contributor.authorAltuğ, G. S.
dc.date.accessioned2024-06-13T20:16:06Z
dc.date.available2024-06-13T20:16:06Z
dc.date.issued2013
dc.departmentFakülteler, Mühendislik Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümü
dc.description3rd International Conference of Engineering Against Failure, ICEAF 2013 -- 26-28 June 2013
dc.description.abstractIn this study, the wear behavior of GG20 and GG25 gray cast iron materials was investigated under dry sliding condition. In the first stage of the study, the matrix phases (ferrite/pearlite) were determined in addition to the morphology and distribution of graphite, using light microscope and scanning electron microscope. In the second stage, wear tests were carried out using "ball-on-disc" type tribometer. In the wear test, load, total distance and rotating speed were selected as 10 N, 250 m and 100 rpm, respectively. The results were evaluated using the friction coefficient-distance diagram and calculating wear-induced volume loss as well as specific wear rate values. All worn surfaces were examined by scanning electron microscope and wear characteristics of cast iron materials were discussed as a function of the matrix phases and the amount and distribution of graphite phase. It was concluded that (i) hardness value and amount of the graphite phase were higher for GG20 material compared to the GG25 material, (ii) the mean friction coefficient of GG20 material was lower than that of GG25 material due to its higher hardness and the lubricant effect of graphite phase, (iii) wearinduced volume loss for GG20 material was higher than GG25 material after the wear test, due to the breaking tendency of graphite phase under load, (iv) all worn surfaces exhibited typical abrasiveadhesive tracks.
dc.identifier.endpage414
dc.identifier.isbn9789608810433
dc.identifier.scopus2-s2.0-84905695643
dc.identifier.scopusqualityN/A
dc.identifier.startpage407
dc.identifier.urihttps://hdl.handle.net/11501/1052
dc.indekslendigikaynakScopus
dc.institutionauthorTaşlıçukur, Zeynep
dc.institutionauthorAltuğ, G. S.
dc.language.isoen
dc.publisherUniversity of Patras, Laboratory of Technology and Strength of Materials
dc.relation.ispartof3rd International Conference of Engineering Against Failure, ICEAF
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectCast Iron
dc.subjectGraphite Distribution
dc.subjectMicrostructure
dc.subjectWear
dc.titleCharacterization of fracture (part II): investigation of dry sliding wear mechanism of GG20 and GG25 cast iron materials used for valves
dc.typeConference Object

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