Publication:
Characterization of structural and mechanical properties of HfNbTaTiZr refractory high entropy alloy after gas nitriding

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dc.contributor.coauthorAlphan, Yunus
dc.contributor.coauthorKaba, Mertcan
dc.contributor.coauthorCimenoglu, Huseyin
dc.contributor.departmentN/A
dc.contributor.kuauthorMotallebzadeh, Amir
dc.contributor.researchcenterKoç University Surface Science and Technology Center (KUYTAM) / Koç Üniversitesi Yüzey Teknolojileri Araştırmaları Merkezi (KUYTAM)
dc.contributor.schoolcollegeinstituteN/A
dc.date.accessioned2024-12-29T09:37:58Z
dc.date.issued2024
dc.description.abstractThis study was initiated to improve surface hardness and wear resistance of a HfNbTaTiZr refractory high entropy alloy (RHEA) by gas nitriding at a medium temperature (600 °C) for 3 h. Structural characterizations conducted by X-ray diffractometer (XRD), X-ray photoelectron spectroscopy (XPS) and energy dispersive spectroscopy (EDS) equipped scanning electron microscope (SEM) revealed that nitriding led to formation of a 1.5 μm thick surface layer containing precipitates of oxides and nitrides of the alloying elements. Detection of oxides within the surface layer was attributed to the presence residual oxygen in the nitriding atmosphere. Nevertheless, the employed gas nitriding provided remarkably higher scratch resistance compared to the untreated state, as the results of increment in the surface hardness and development of larger compressive residual stress. © 2024 Elsevier Ltd
dc.description.indexedbyWoS
dc.description.indexedbyScopus
dc.description.publisherscopeInternational
dc.description.volume169
dc.identifier.doi10.1016/j.intermet.2024.108279
dc.identifier.eissn1879-0216
dc.identifier.issn0966-9795
dc.identifier.quartileQ1
dc.identifier.scopus2-s2.0-85189433922
dc.identifier.urihttps://doi.org/10.1016/j.intermet.2024.108279
dc.identifier.urihttps://hdl.handle.net/20.500.14288/22540
dc.identifier.wos1223941700001
dc.keywordsNitriding
dc.keywordsRefractory high entropy alloy
dc.keywordsScratch test
dc.languageen
dc.publisherElsevier
dc.sourceIntermetallics
dc.subjectChemistry, physical
dc.subjectMaterials science
dc.subjectMetallurgy and metallurgical engineering
dc.titleCharacterization of structural and mechanical properties of HfNbTaTiZr refractory high entropy alloy after gas nitriding
dc.typeJournal article
dspace.entity.typePublication
local.contributor.kuauthorMotallebzadeh, Amir

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