Surface Characterization of NiTi Superelastic and Shape Memory Alloys After Electrolytic Polishing

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dc.creatorNatália Isabel de Azevedo Lopes
dc.creatorLaís Ávila de Oliveira Silva
dc.creatorLeandro de Arruda Santos
dc.creatorVicente Tadeu Lopes Buono
dc.date.accessioned2023-07-27T18:37:11Z
dc.date.accessioned2025-09-09T01:09:24Z
dc.date.available2023-07-27T18:37:11Z
dc.date.issued2017
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1590/1980-5373-MR-2016-0933
dc.identifier.issn1516-1439
dc.identifier.urihttps://hdl.handle.net/1843/57068
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofMaterials Research
dc.rightsAcesso Aberto
dc.subjectElasticidade
dc.subjectEfeito da memória de forma
dc.subjectSolução eletrolítica
dc.subjectBiomassa
dc.subject.otherNiTi
dc.subject.otherSuperelasticity
dc.subject.otherShape Memory Effect
dc.subject.otherElectrolytic polishing
dc.subject.otherBiomaterial
dc.titleSurface Characterization of NiTi Superelastic and Shape Memory Alloys After Electrolytic Polishing
dc.typeArtigo de periódico
local.citation.epage579
local.citation.issue0
local.citation.spage572
local.citation.volume20
local.description.resumoFor the biomedical application of NiTi alloys, an excellent surface finishing process is required to guarantee high corrosion resistance and biocompatibility, eliminating the allergenic and toxic effects associated with the release of nickel ions in the body. Electropolishing is a process that can reduce surface imperfections and form a thin protective layer of TiO2, even in complex-shaped devices. The main objective of our study was to find and report suitable parameters for electrolytic polishing of NiTi wires, in both the superelastic and shape memory states. The results indicate that electropolishing in a 3.5 mol•L-1 methanolic H2SO4 electrolyte at 20ºC can effectively reduce surface roughness, remove superficial nickel-rich layers and improve corrosion resistance for austenitic and martensitic NiTi alloys.
local.identifier.orcidhttps://orcid.org/0000-0001-9172-6429
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICA
local.publisher.departmentENGENHARIA - ESCOLA DE ENGENHARIA
local.publisher.initialsUFMG
local.url.externahttps://www.scielo.br/j/mr/a/FkPQpcmXTg5vGVtDF5rVX7F/?lang=en

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