Effect of Nb addition on the thermodynamic of solidification in a Ti-Ni-Cu alloy

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dc.creatorJessica Dornelas Silva
dc.creatorDilson Silva dos Santos
dc.creatorLeandro de Arruda Santos
dc.creatorVicente Tadeu Lopes Buono
dc.date.accessioned2025-02-24T23:20:06Z
dc.date.accessioned2025-09-09T00:22:17Z
dc.date.available2025-02-24T23:20:06Z
dc.date.issued2023-06-26
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1590/1980-5373-MR-2022-0574
dc.identifier.issn1980-5373
dc.identifier.urihttps://hdl.handle.net/1843/80401
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofMaterials Research
dc.rightsAcesso Aberto
dc.subjectSolidificação
dc.subjectLigas (Metalurgia)
dc.subjectEngenharia metalúrgica
dc.subject.otherTiNiCu-based alloys
dc.subject.othershape memory alloy
dc.subject.otherSolidification
dc.subject.otherScheil calculator
dc.titleEffect of Nb addition on the thermodynamic of solidification in a Ti-Ni-Cu alloy
dc.typeArtigo de periódico
local.citation.epage7
local.citation.issueSuppl 1
local.citation.spage1
local.citation.volume26
local.description.resumoThe solidification process of Ti52-xNi38Cu10Nbx alloys was evaluated using the CALPHAD method and microstructural analyses of as-cast alloys with Nb additions of x = 4, 6, 8 and 10 at%. Both in Scheil calculator and structural analyses, the observed phases were TiNi, β-Nb/Ti, and Ti2Ni. TiNi is the matrix phase, and it presented similar amounts of Ti and Ni with varying Nb contents. Enrichments of Ti content and depletion of Ni are expected in the liquid with the solidification of this phase. Formation of Ti2Ni and β-Ti is related to the excess of Ti. Increasing Nb content hinders the formation of Ti2Ni, favoring β-Ti. In turn, Ni depletion and Nb accumulation led to the TiNi/β-Nb eutectic. In the intermetallic phases, coherent ratios were obtained when Cu was considered a substitute for Ni, and Nb, for Ti.
local.identifier.orcidhttps://orcid.org/0000-0003-4687-6051
local.identifier.orcidhttps://orcid.org/0000-0003-3324-5074
local.identifier.orcidhttps://orcid.org/0000-0001-9172-6429
local.identifier.orcidhttps://orcid.org/0000-0002-0574-5218
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICA
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/mr/a/n36TBVyNDSX9BvZVYyQgYvH/?format=pdf&lang=en

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