Effect of Y addition on the structural transformation and thermal stability of Ti-22Al-25Nb alloy produced by mechanical alloying

Basit Öğe Kaydı
dc.contributor.authorCetin, Mehmei Emin
dc.contributor.authorPolat, Gokhan
dc.contributor.authorTekin, Mustafa
dc.contributor.authorBatibay, Ahmet Burcin
dc.contributor.authorKotan, Masan
dc.date.accessioned2024-02-23T14:31:53Z
dc.date.available2024-02-23T14:31:53Z
dc.date.issued2021
dc.departmentNEÜen_US
dc.description.abstractIn this study, a Ti-22Al-25Nb alloy with nanocrystalline structure was produced by high energy mechanical alloying (HEMA) and 1 at.-% yttrium was added as a thermal stabilizer. The as-milled samples were annealed at various temperatures up to 900 degrees C in a protective gas atmosphere, and the samples were allowed to cool to room temperature in the furnace. The phase transformations and microstructural changes as a function of the annealing temperatures and alloy compositions were studied using room- and high-temperature X-ray diffraction (XRD), focused ion beam microscopy (FIB), and scanning electron microscopy (SEM). The mechanical properties of the samples were interpreted based on the hardness results and their correlation with the microstructures. The results showed that the as-milled nanocrystalline structure of Ti-22Al-25Nb alloy increased from 3.4 nm to 350 nm after annealing at 800 degrees C due to the high driving force induced by the large grain boundary area. Consequently, the as-milled hardness of the Ti-22Al-25Nb alloy dropped from 7.63 +/- 0.18 GPa to 5.37 +/- 0.28 GPa. The grain size stability of the Ti-22Al-25Nb alloy after annealing at elevated temperature was ensured through the addition of yttrium. Thus, the grain size remained at the level of 125 nm, and the hardness value was maintained at around 6.98 +/- 0.43 GPa after annealing at 800 degrees C.en_US
dc.description.sponsorshipNecmettin Erbakan University through the BAP project [181216001]en_US
dc.description.sponsorshipThe authors gratefully acknowledge the financial support from Necmettin Erbakan University through the BAP project 181216001.en_US
dc.identifier.doi10.1515/mt-2020-0099
dc.identifier.endpage605en_US
dc.identifier.issn0025-5300
dc.identifier.issn2195-8572
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-85112617180en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage599en_US
dc.identifier.urihttps://doi.org/10.1515/mt-2020-0099
dc.identifier.urihttps://hdl.handle.net/20.500.12452/15393
dc.identifier.volume63en_US
dc.identifier.wosWOS:000679361400002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWalter De Gruyter Gmbhen_US
dc.relation.ispartofMaterials Testingen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectTitanium Alloysen_US
dc.subjectAlloy Developmenten_US
dc.subjectMechanical Alloyingen_US
dc.subjectAnnealingen_US
dc.subjectThermal Stabilityen_US
dc.titleEffect of Y addition on the structural transformation and thermal stability of Ti-22Al-25Nb alloy produced by mechanical alloyingen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu