Effect of Y addition on the structural transformation and thermal stability of Ti-22Al-25Nb alloy produced by mechanical alloying
dc.contributor.author | Cetin, Mehmei Emin | |
dc.contributor.author | Polat, Gokhan | |
dc.contributor.author | Tekin, Mustafa | |
dc.contributor.author | Batibay, Ahmet Burcin | |
dc.contributor.author | Kotan, Masan | |
dc.date.accessioned | 2024-02-23T14:29:51Z | |
dc.date.available | 2024-02-23T14:29:51Z | |
dc.date.issued | 2021 | |
dc.department | NEÜ | en_US |
dc.description.abstract | In 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.sponsorship | Necmettin Erbakan University through the BAP project [181216001] | en_US |
dc.description.sponsorship | The authors gratefully acknowledge the financial support from Necmettin Erbakan University through the BAP project 181216001. | en_US |
dc.identifier.doi | 10.1515/mt-2020-0099 | |
dc.identifier.endpage | 605 | en_US |
dc.identifier.issn | 0025-5300 | |
dc.identifier.issn | 2195-8572 | |
dc.identifier.issue | 7 | en_US |
dc.identifier.scopus | 2-s2.0-85112617180 | en_US |
dc.identifier.scopusquality | Q2 | en_US |
dc.identifier.startpage | 599 | en_US |
dc.identifier.uri | https://doi.org/10.1515/mt-2020-0099 | |
dc.identifier.uri | https://hdl.handle.net/20.500.12452/14893 | |
dc.identifier.volume | 63 | en_US |
dc.identifier.wos | WOS:000679361400002 | en_US |
dc.identifier.wosquality | Q2 | en_US |
dc.indekslendigikaynak | Web of Science | en_US |
dc.indekslendigikaynak | Scopus | en_US |
dc.language.iso | en | en_US |
dc.publisher | Walter De Gruyter Gmbh | en_US |
dc.relation.ispartof | Materials Testing | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Titanium Alloys | en_US |
dc.subject | Alloy Development | en_US |
dc.subject | Mechanical Alloying | en_US |
dc.subject | Annealing | en_US |
dc.subject | Thermal Stability | en_US |
dc.title | Effect of Y addition on the structural transformation and thermal stability of Ti-22Al-25Nb alloy produced by mechanical alloying | en_US |
dc.type | Article | en_US |