Evolution of synthesis of FCC nanocrystalline solid solution and amorphous phase in the Ti-Ta based alloy by high milling energy

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dc.contributor.authorAguilar, C.
dc.contributor.authorPio, E.
dc.contributor.authorMedina, A.
dc.contributor.authorMartinez, C.
dc.contributor.authorSancy, M.
dc.contributor.authorGuzman, D.
dc.date.accessioned2025-01-20T23:55:36Z
dc.date.available2025-01-20T23:55:36Z
dc.date.issued2021
dc.description.abstractPure Ti and Ti-based alloys exhibit two equilibrium phases: at lower temperatures they have a hexagonal close packed (alpha-Ti) crystalline structure while at higher temperatures they possess a body-centered cubic (beta-Ti) structure. However, in special conditions, they could exhibit a metastable face-centered cubic (gamma-Ti) crystalline structure. This paper aims to investigate the influence of Sn amount and milling time on the formation of gamma-Ti phase on the Ti-Ta based alloy. Four alloys with compositions Ti-13Ta-xSn (x: 3, 6, 9 and 12 at. %) were obtained by high energy milling. The alloys were analyzed by X-ray diffaction patterns, transmission and scanning electron microscopy. For the Ti-13Ta-3Sn alloy, the beta-Ti phase is formed in greater quantity, similar to 70% at 100 h. For the Ti-13Ta-6Sn and Ti-13Ta-9Sn alloys, the phase that is in greater quantity is gamma-Ti, around 100% at 100h. The Ti-13Ta-6Sn alloy shows a greater tendency to form the gamma-Ti phase, since the quantity is close to 100% at 50 h milling time. Thermodynamic calculations are comparable with experimental data. The calculations were made using the MAAT software based on Miedema's model. The MAAT is a free software that can be download from www.rpm.usm.cl. (C) 2020 Elsevier B.V. All rights reserved.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.jallcom.2020.155980
dc.identifier.eissn1873-4669
dc.identifier.issn0925-8388
dc.identifier.urihttps://doi.org/10.1016/j.jallcom.2020.155980
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95099
dc.identifier.wosidWOS:000596076300001
dc.language.isoen
dc.revistaJournal of alloys and compounds
dc.rightsacceso restringido
dc.subjectTi-Ta-Sn alloy
dc.subjectAmorphous phase
dc.subjectTi-based alloys
dc.subjectThermodynamic modelling
dc.subjectMechanical alloying
dc.subjectFCC
dc.titleEvolution of synthesis of FCC nanocrystalline solid solution and amorphous phase in the Ti-Ta based alloy by high milling energy
dc.typeartículo
dc.volumen854
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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