Understanding microstructural evolution and hardness of nanostructured Fe89.5Ni8Zr2.5 alloy produced by mechanical alloying and pressureless sintering

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dc.contributor.authorPolat, Gokhan
dc.contributor.authorBatibay, Ahmet B.
dc.contributor.authorKotan, Hasan
dc.date.accessioned2024-02-23T14:12:48Z
dc.date.available2024-02-23T14:12:48Z
dc.date.issued2020
dc.departmentNEÜen_US
dc.description.abstractFe89.5Ni8Zr2.5 alloy was synthesized by mechanical alloying followed by pressureless sintering at various temperatures up to 900 degrees C. Microstructural evolution as a function of processing temperature was characterized using focused ion beam microscopy, transmission electron microscopy and X-ray diffraction techniques. The dependence of hardness on the microstructure was utilized to study the mechanical changes. The experimental results showed that microstructural stability can be enhanced by segregation of solutes to grain boundaries at low temperatures and by precipitation of second phases at elevated temperatures. Eventually, at higher processing temperatures the stability was lost due to the coarsening of the precipitated second phases leaving behind ultra-fined grained microstructure. Despite the coarsening of the grain size with increasing processing temperatures, the in-situ formed second phases were found to induce an Orowan strengthening effect leading to approximately 5.5 GPa hardness after 1 h sintering at 900 degrees C. (c) 2020 Karabuk University. Publishing services by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.description.sponsorshipNecmettin Erbakan University, TURKEY, through the Scientific Research Projects Coordination Unit. (BAP) [171219006]en_US
dc.description.sponsorshipYThe authors gratefully acknowledge the support from Necmettin Erbakan University, TURKEY, through the Scientific Research Projects Coordination Unit. (BAP) under project number of 171219006.en_US
dc.identifier.doi10.1016/j.jestch.2020.03.010
dc.identifier.endpage1284en_US
dc.identifier.issn2215-0986
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85083016518en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1279en_US
dc.identifier.urihttps://doi.org/10.1016/j.jestch.2020.03.010
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12190
dc.identifier.volume23en_US
dc.identifier.wosWOS:000576840500003en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier - Division Reed Elsevier India Pvt Ltden_US
dc.relation.ispartofEngineering Science And Technology-An International Journal-Jestechen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectNanostructured Materialsen_US
dc.subjectMechanical Alloyingen_US
dc.subjectGrain Growthen_US
dc.subjectThermal Stabilityen_US
dc.subjectSinteringen_US
dc.subjectSteelen_US
dc.titleUnderstanding microstructural evolution and hardness of nanostructured Fe89.5Ni8Zr2.5 alloy produced by mechanical alloying and pressureless sinteringen_US
dc.typeArticleen_US

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